I Have Been To The Doctor With Continued Breakouts With

I Have been to the doctor with continued breakouts with what we thought was shingles or herpes simplex, she did blood work as follows CBC with differential, ANA Direct, HSV 1/2 DNA all came back negative. I went back to the doctor because of blisters that broke out in my mouth and on my lip, I am extremely tired She is sending me to Rheumatologist to see if I have an auto-immune disease called Behcet Syndrome. what do you think