10+ cant remember but would have been more. I figured it out and had to insist on testing. Took 3 yrs of horrible pain, seizures, black outs, numbness, fatigue and migraines. Infectious disease and neuro. are the worst that wont listen and arrogant. Then after figuring out, been to probably around ten more until I found one that has a clue how to help even knowing whats wrong. Disgusting.