morning all! quick question if you don't mind...I went for a walk Sunday, about 30 mins then stopped at a pub for couple hours then walked back! I noticed yesterday my hips were hurting a bit and thought maybe with the stretching etc i am a bit sensitive but last night I was really uncomfortable and found it hard to get comfy on my side, now I have woken with quite bad back ache, and ache in my belly, should I be worried? X