Ladyhawk, I didn't reply because I don't remember ever taking muscle relaxants, but for sure, it's very likely that they cause water retention or some other form of weight gain. I know NSAIDS can. If I take ibuprofen for a day or two, up goes the scale.

01 - 154.5 PMS
02 - 155.0
03 - 154.0
04 - 153.5
05 - 154.0 TOM
06 - 153.0
07 - 153.5
08 - 151.5
09 - 152.0
10 - 152.0