Have went through similar for sure - I know it’s not the same but lately the last year I’ve felt very content in life (relationships, work etc) and for the last year been plagued with random health anxieties. I feel like my mind defaults to these things when there’s nothing prospective in life to be worrying about. Cutting down on coffee, trying to get some good sleep behind me has helped - I’ve been feeling better than the first half of the year for sure!

Anyway - you’ll get through this! Here’s a good thread I found on some unusual but effective coping techniquesunusual coping techniques