Hi, may I answer your health queries right now ? Please type your query here... It seems to me that the left side of my body is more sensitive than my right. It also seems skinnier. The bones on my foot are not covered by as much soft tissue. My left shins and joints ache after working out. When I m sick, my left armpit is sensitive, and my left breast aches before my period. Also, if I have a tooth ache, it is on my left side. Am I imagining this?