Loves, do you have a family doctor you could see? I don't like that they didn't figure out what was wrong.
And...do some reading, find yourself some anti-stress exercises both physical and mental and start working them. Just walking and talking to God helps me and finding a quiet place where I can just sit in nature and feel the serenity.
Stress does make us sick, I struggled with anxiety attacks for years and almost never have any now...but don't just write this off to stress without talking to your doctor.
And I'll be right behind Cats for a visit to that nurse and show her the wrath of the steel toed bunny slippers.
Hugs