73 days is a great achievement . I agree with Dee that once the alcohol is removed some of us are left with the original issues . During a 2 year period of sobriety I had a very hard time with anxiety for which I needed professional help and eventually I got better .You mentioned health anxiety , this was a problem with me and one that I still have to have certain rules over . DO NOT google symptoms ,2: stay away from health anxiety forums .3: Stop talking about illness . ( these are my rules and sometimes I slip up as I talked about a tension headache the other day , its a bad habit ) .
Its good to read how anxiety works and how sometimes we keep it going with our own thinking . There are many books on Amazon ( kindle editions are cheaper ) . Can you Talk to your doctor and arrange CBT , one of the talking therapies . Personally I didn't find and prescription drugs helped me long term .
Keep posting , you will get through this .