I'm legitimately freaking out for most minutes of each day, with varying intensity, about my health. Like my veins are all pulsating, heart is racing, lightheaded and stuff because I keep thinking I'm going to be diagnosed with something terrible and die young. I'm 26 and I'm not ready to die, I've barely lived yet to be honest.

My lymph nodes have been hard-ish but normal size for several months, finally was able to see my doctor about it today (they've been turning patients away due to Covid) and my doctor said they were somewhat hard but not worrying because they're not large or growing. I'm also not sick at all and am going for runs every day and stuff. Apparently (according to one doctor I found on google), they can swell in response to infection and get stuck like that without it meaning anything bad, but I still cannot calm down and stop the racing terrified thoughts that I'm going to die in 6 months or something. Just terrified to the point that I'm not able to concentrate on anything at all, even tv shows and stuff. I don't know what to do, I'm thinking of making another appointment in a couple days even though I just saw my doctor and I don't know what else he could tell me. They are supposed to get hard in response to infection but I'm not infected with anything to my knowledge and this just seems so random. For context I also thought I might have mouth cancer and melanoma and my doctor dispelled those fears pretty well, but the lymph nodes thing is still really bloody freaking me out because he didn't have an explanation just told me it's nothing to worry about. I'm in a constant state of borderline panic and darkness feeling completely alone and fretting about imminent death. 

Can anyone else relate to this, please don't tell me my symptom is worrying or something because that will fuck me up. Does anyone else here have hypochondria?