ok so i have bin going to jiu jitsu for awhile now and i have got some pain on the inside of my left leg i think its right were my ligament or tendon (not sure what its called i know its one of those) meets my knee should i take a few days off n rest or is it normal n will go away after awhile? also i get head aches after class is this normal because my bodies not used to working this hard i did spend 2 years in a bed before i started jiu jitsu and i did have open head surgery think there related ?