That is exactly how my stomach muscles have felt since 3 DPO dinky! I am hoping it is a good sign for both of us.. I am still having a lot of cramps as well. I have the opposite of tiredness though, I am having some severe insomnia.. not sure if that is a sign. The nausea has sort of gone away but now I have this bad taste in my mouth and things that normally taste good to me just taste off.. even my toothpaste tasted bad to me last night. This banana smoothie that I usually drink every morning tasted so bitter to me this morning I couldn't drink it all. My boobs dont hurt per say but I have been having a lot of sharp pains in them, but my boobs never have hurt with any of my pregnancies now that I think about it and last night I had that weird pulling sensation behind my belly button a lot of woman talk about. 6 DPO for me now.. 3 days till I start testing.