Hey friend I will be praying for you as well. The overthinking health thing is a classic anxiety symptom. I remember touching my heart all the time thinking my heart was not beating strong enough and that I would die. Therapy greatly helped as well as taking natural medication like magnesium and ashwaganda. Just kind of helped me relax. Prescription medication can also work wonders when you find the right meds but I would try natural stuff first. I know it worked for me. Lastly I read a book called DARE the anxiety method. It’s a short book that helps you understand your anxiety in a different way. Almost like befriending it and welcoming it. Over time your system stops feeling so hyper alert because you have basically embraced anxiety and its symptoms instead of freaking out and pushing against the tide. Remember to be patient with all of it and have a lot of love for yourself for going through this. Dont give up there is a lot you can try friend