Hypochondria since 3 years. Completely.

I am dieing daily...daily...every second.. I am hypochondria. Last three , year I was scaring of cancer and rush to hospital for every single symptoms. I do cbc check every body once. I did 3 times MRI to check brain tumor. Full neck ultrasound for any lymph node swell. I had got covid 2 months back , recovered but I am living in fear of lungs fibrosis. Since two days I am having slightly increase ik body temperature ( max 99.1 only after walking or exercise) .. I am scaring covid came back again. From last 4 hour , I am getting left lower dull pain. I read on internet that blood cancer affect spleen and then comes there... I am really scared...sometime I feel better to close eyes permanently if I have to leave like this... I have taken 430 consultation of different specialist in last 4 year in practo.. some doctor understand my issue properly but some scare me... One suggested me to go for PETSCAN to remove all doubts... I am crying while writting this...I life is runined completely..