hi doctor my problem started about 8 - 9 months ago and still not diagnosed ..i had folliculitis and hydradenitus in my underarms and i guess in my groin area too...but i still feel a pinching pain inside my skin in th groin and under arms and a funny sort of a feeling ...unexplainable sometimes i feel sort of a swellingin my elbow and knees too what tests should i get it done please help