i'm not really sure if this comes under anxiety or panic attacks

i keep getting these imminent feelings of doom today and i feel a really big rush down from my head everytime

so far today i've thought i have brain cancer, blood clots, a stroke and had a heart attack each making me think im gonna drop dead at any moment

i've been ok for ages but have found today i've been really bad and crying a lot. it's really distressing to feel like this especially when i was saying my good byes to my son this morning

i hate myself for feeling like this and feel like my whole body is numb and weak today. i don't want to ruin my sons life by being this way

sorry for the rant i just feel really isolated and alone and don't know who to turn to anymore :(