I can swim in that I can keep myself afloat and move around and stuff… just not gracefully or efficiently. My excuse is cold water! I guess it’s because I have almost no body fat, but what most people consider warm water feels cold to me. Getting in an 80 degree pool makes my lips turn blue and my teeth chatter. You can’t motivate me to put my head under the water under those conditions!! My refusal to go underwater caused me to fail swimming lessons over and over again as a child. So I never really learned how to not get water up my nose if I put my head under water without pinching my nose shut, and pinching my nose shut of course occupies an arm, which makes swimming somewhat impossible. So the only form of swimming that I really can do involves keeping the head above water. It’s functional enough – but pathetic to watch!