pots

I had an intense discomfort in my upper abdomen/lower chest (couldn’t really tell) for most of the day, and I have spent hours thinking I’m going to have a heart attack (despite being a decently healthy 18 yo) because of my moderate maybe chest pain combined with back/neck soreness and a headache (which I think was caused by the stress). I took some antiacids + neutralizers and the pain mostly went away, but everytime my head hurts or I breathe in too deep and feel a crook in my chest I immediately jump to heart attack. I’m scared to fall asleep because I think I’ll die in my sleep. I might go waste money at urgent care just because I need to hear from a professional that it’ll be okay. This similar feeling happened 3 weeks when I thought I had a brain aneurysm, I feel so scared

Tomorrow I started a new treatment with Saxenda, because my gynecologist told me, with the exactly dosis, I was really happy for have better health, but I saw a comment on TikTok there's a possibility of Cancer Thyroid, now I'm thinking what If I'll get cancer, and thinking about don't want to ruin my treatment but if the cancer? But a lot of normal things give you cancer, I so scared but was that comment on TikTok I scared ah, now I'm searching on Google, but nothing is going to happen right ??? If I have the control of my dosis nothing's going to happen right?

Please help… I’m starting to panic and I know I shouldn’t do this because it’s a compulsion and I’m looking for reassurance but I wanna know if it happens to others so I just watched a video on TikTok about this mother loosing her child to fentanyl and like I don’t know why every time a drug is mentioned or like I see someone drugged in the street my mind instantly makes me feel the urge of wanting the drug when I really don’t or making me think I’m gonna become addicted to a drug (I don’t do drugs I’m scared) like it scares me because I see what they do to people but it makes me feel like the urge to do it or to think I might become addicted or I might go try it and become an addict idk the worst case scenario it makes me think or like someone is gonna drug me. Like I always feel like someone is gonna drug me I always feel like someone is out to drugging me or I grab something and i immediately think I’m gonna become drugged. I hate it.