I can’t do anything without getting lightheaded!!

(HELP PLEASE) So my depersonalization/derealization has gotten so bad I’m actually scared for my life and I don’t know if I’m ever going to go back to normal I’m freaking out about it. I feel so unreal and vision is so blurry, I feel like I can go insane any second and that feeling is causing me so MUCH anxiety. I don’t know what to do anymore guys, this is a HORRIBLE theme I’m having because it’s not just mental, it’s physical, I feel so many ugly symptoms because of the derealization! Help someone please!

I’m trying so hard not to post on here because i know it’s a compulsion. However I’m just so beyond scared. And this is health related and i know most of you are going to say you need to see a doctor or something along those lines but I’m just wondering If others have experienced anything like this and how to overcome it. I’m so beyond scared of having a brain tumor. Like it’s taking over my life. I’m scared to death of having a seizure because i know seizing is apart of brain tumors. I honestly don’t know what to do at this point. I keep feeling pains and sensations in my head particularly on one side. And because i know that brain tumor pain is normally localized in one spot i am freaking out. My mind keeps telling me “what if you are forgetful” so i keeps repeating my name, where i work, families names, etc to make sure I’m not in confusion and forgetting things. My eyes keep twitching, i am anxious 24:7. And normally being anxious would make me feel better in a way but now I’m scared to be anxious because anxiety could be a symptom of an underlying brain tumor. I don’t know what to do. I’m to scared of going to the doctors. What if they tell me i actually do have a tumor. Would i want to catch it early, of course i would but i am wayy to scared. These pains in my head are so beyond scary. The only thing making me feel somewhat okay is the fact that they come an go (and sometimes all over head as opposed to one spot) Like this morning i was fine with no pains but now they are here and I’m sick to my stomach. I’m also scared of feeling any nausea or stomach cramps because i know that vomiting is a sign of a tumor. And This morning i woke up with intense intense anxiety and i literally had a vision of me in the hospital getting a tumor removed. And it was beyond scary 😭😭😭

This has only started to occur within the last year (I’m in my late 20s). I’ve become obsessively concerned with every single sensation I experience in my body constantly. Realistically, I don’t have any health concerns (besides mental health). I have an intense fear of having a medical emergency in front of another human, I find it to be so embarrassing (only for me tho, if someone had a medical emergency around me I don’t think it’s embarrassing at all). I constantly think I’m going to pass out (I have passed out in public before due to heat and people were laughing at me). It seems like all my bodily sensations have now become foreign to me and everything I physically feel is an indicator that I’m dying. Anyone else struggle existing in their body like this too?