underarm discomfort

Hi,
I'm 29 years old and I have been experiencing discomfort in my left armpit.  I have felt for lumps or swollen glands, but I don't feel anything.  There is no pain, just discomfort.  When I sleep, I usually put a thick blanket under my arm.  Otherwise, the discomfort drives me crazy.  Should I be alarmed?  It also bothers me sometimes during the day when my arms are at my side.  Can you give me any insight?

[DrBhumikaMD]

Hi,
Is there any association of the discomfort with your menstrual cycle? Are you on OCP medication?
You should get a clinical evaluation done if the pain persists for more than a few days.
Try warm compresses, wear lose clothes - a sports bra should help and apply some local analgesic cream. Also try breast massage and breast exercises.
If the pain still persists, schedule an appointment with your physician.
Do carry on regular breast self exams and report any lump or nipple discharge or skin changes to your doctor immediately.
Hope this helps.
Good luck.