Newest fear 😭

I had a migraine a little over a week ago after a few months of tremendous stress and anxiety. For a few days I was okay apart from a mild headache but then i got it into my head that I have a brain tumour. Yesterday I had the worst panic attack ever caused by all this overthinking. I started getting really dizzy, numb face and arm and I was convinced I had been correct and did have a brain tumour. The panic attack subsided after I calmed myself down a little bit but I am so anxious that I have a brain tumour. The numb feeling disappeared after the panic attack. But i have a dull headache, had a twitchy eye sometimes, and neck twitches. Sometimes when I really think about it I feel like I can’t focus or keep my vision straight. I can’t stop panicking about it I’m really really scared that there’s something wrong with me. I’m gonna go to the doctors to ask about it but i just needed to vent. I feel like recently I’m spending all the time thinking I have a brain tumour and it is honestly terrifying me so much.

I went to internal medicine today, and i'm not perfectly healthy, My liver is a little bit fat, I have to lose weight so thats okay, also I have gallsand, which is not gallstone yet but it can become that if its not treated. Now im like these arent big problems but when i heard these I started to overthink and think about the worse that I will have gallstones cause the doctor said I have it cause it runs in my family(my mother/grandmother and uncle had it) and I just think that it wont go away, and even if i doesn I will be worried all year if it came back. Im just so afraid. Also they said I should go get a blood check, but I said i will hesitate now cause last time i almost fainted and felt horrible the whole day, and now i hear from people i know that they went and they felt sick and vomited there. But the overthinking comes from me thinking if these little symptoms I experienced which I thought its because of anxiety, was because of health issues then the other symptoms I experience sometimes (headache and lightheadedness) are there cause of another health issue, and im worrying about my health, im afraid of death, i keep imagining myself if they tell me that i have terminal illness or something really bad and i dont know how to handle it. Now i feel nausea and i would say its because of stress but i keep thinking that its because of the health issues I have...I don't know how to handle this fear, if you ask others or therapists, they will say "yeah everyone is afraid of death and suffering" or "Try to think about something else" and i wont pay for advices like this...

2 days ago I decided that I will do my bloodtest, last time i was in 2017 and for some reason when i stood up I started to feel dizzy and I couldnt see anything, I didnt fainted but i was close to it,the nurses quickly layed me down, and then i was fine, but the whole day my body was shaking. I was afraid of blood test, and i always avoided it, but my health anxiety got worse cause i was afraid everytime that i have cancer but i cant check it cause im afraid of bloodtests. This year i had to do other medical tests and now they asked me to do bloodtest too, and 2 days ago i said okay this week i will face this fear. And i felt excitet, motivated and happy that finally i will face my fear. I did not cared if i faint cause it might not happen but if does I can handle it, i will feel good after i wake up. But someone after some hours, the fears came up, and i wanted to face them (cause people say you need to challenge the thoughts) so i tried to challenge them and find ways that i will handle those scenarios, but after time i got stressed cause i didnt know how to respond. If i faint and then vomit and feel sick and vomit alot of times cause im also panicking to the point they have to take me to the hospital... this jist scared me. I dont know how to handle that panic. The body will react to the blooddrown so either way i will feel bad. And im afraid of it and I cant deal with that fear.I dont know what to do if i will feel sick the whole day, if i will vomit the whole day and faint because of stress. This might be catastrophising but now these thoughts comes up, if i imagine myself being there and getting my blood drawned, i imediatelly feel the panic and these scenarios come up and then i dont know what to do so i just panic... Last night i asked help from others and it helped that some said that its pretty rare that you will vomit after blooddrawn, people who do are sick already or they are really scared. And this made me feel good but then i read about it and i found out that its pretty common that people faint, or vomit or fo both after blooddrawn... and now im just thinking about not going... i cant deal with it cause idk what to do. Breathing techniques didnt worked for me, if im panicking and i try to relax by breathing, i get more stressed cause my brain knows i do it to calm down and the panic is a danger so i get more panic... idk what to do.