I give up on trying to figure out what I wrong with me , have havd 2 thyroid tests came back fine, have had cbc blood work came back fine, got tested for mono came back fine, got cmp panel came back fine , psa test came back fine, . I am still having a stiff neck at times back bothers me , pressure in my head, and pain at back of head at times, the other night I almost feel other and lost my balance, my sleeping schedule is out of whack, sleeping during the day. my throat is bothering me feel like having a hard time breathing at times , feel like going to past out at times, just frustrated, and on penicillin for sore throat but have felt like its causing low blood pressure, feel cold. or it could be the benadril take because of allergies.