Since my daughter was born 4 months ago I keep finding bruises on my body, usually on the backs of my legs. I have absolutely no recollection of bumping or hurting myself and they don't even hurt despite looking horrendous. For the most part I don't even notice them myself, my husband often points it out and asks how I did it. I've just found a really dark blue/purple/ red bruise on the back of my thigh which is about the size of a table tennis ball and there's a small lump underneath. I can't even feel it if I press on it. Is this normal? Am I just being clumsy without realising it?