is this normal ?

I’ve been perturbed for a couple of months now with incessant thoughts about aging and dying. I really am not sure what to do. This feels like other OCD themes, but also really different, because this time, what I’m afraid of is sure to happen. I will either die, or age and then die. It’s been so difficult to enjoy anything lately. I just want to pull a blanket over my head and wait until death comes. Has anyone else felt this way? I feel quite alone. I am trying to enjoy life, but I just remember that it will all be gone in a flash. Nothing really seems to help me feel better. The only escape I have is in my dreams where I can fantasize about never aging or dying. Or at least being able to rewind the clock to have more time.

I can’t stop thinking about death today. Not like suicide or pondering how I could die. Just more so I’m going to die. It’s like. I was eating my pizza today listening to music and looking at the clouds. And I was like I love this this is amazing. And then Brain says “ur gonna die one day btw” Or I redid my wallpaper on my phone and I love the way it looks. I unlock my screen and admire the vibe I’ve created. And then brain says “one day you’ll be dead” When I feel a moment of joy or happiness or peace is when the thought screams at me. I’m really unsettled and distraught about thinking about being dead one day. This doesn’t come up often like other thoughts I have but I hate this one because it’s hard to cope with. Because I do the things and “techniques” to make them quieter. But then immediately Brain says “why are u even trying tho. It’s pointless because you’ll be dead one day.” Any advice ??

My chest is aching from the stress of it all. I haven’t felt this bad in years. Please any words of advice would be most helpful. The fact that I’m going to die one day and I have no idea what’s going to happen next, possibly nothingness, and I lose out on all my memories of everyone I ever loved, everything I ever did, is messing me up. I’m 27, and idk how I never felt this way before. I never had these fears before. I never even thought about death like this before let alone it scaring me. Now it’s just stuck in my mind 24/7. The other thing about death is I have to do it alone! :( I love my mum and brother more than anything, I have to leave them one day. I can’t believe it. And they have to leave me?