Armpit Pain?

So lately I've been dealing with a lot of muscle/joint and skin pain, which most I relate to Fibro, but I know some of it is the CFS....Anyway, lately I've noticed my armpits are EXTREMELY sensitive!  Not skin wise, but I'm not sure if it's my lymph nodes or not?  It's more periodic, but just gets really sore and painful...is this something some of you experience?  I've read some about promoting lymph drainage, but not sure if its that or just my muscles in my arms overworked (from typing for example) and bothering my underarms...Thanks in advance...

Thanks so much for answering!  It really is frustrating because the touch of my skin brushing up against the lymph nodes let alone clothes, itck!  The only way to describe it is the same feeeling i used to get with chronic sinus infections in my throat and armpit - exact same feeling which makes me think its related.  You're right though - did kinda hit me that its only really bad when I'm in a more exhausted state.  Has anyone tried any natural methods of lymphatic drainage for this?  I'm not at all opposed to homeopathic treatment as long as I'm sensitive about ingesting things as the herbs/foods (aside from ginger, peppermint, and garlic) seem to set off my SI.

I know many women experience this around their menstrual cycle but I'm on depoprovera and no longer get my period which has been such a blessing in dealing with all of this because I don't think I could take a week of extremem pain and pms on top of everything!

Thanks in advance and thanks for your those J3ski!