Breast Expander Ripped out of Place?

I had a bilateral mastectomy 6 weeks ago. Last night while sleeping, I awoke with severe pain under my right arm. I think I jerked my arm in my sleep. Feels like a torn muscle. I think I can feel my expander under the skin now, . My gut instinct tells me I ripped the sutures on the right side under my arm. Here's the problem, it's Saturday night, Christmas Eve is Monday, etc. Is this dangerous? Or can it wait until December 26th?