Cycling elongates the muscles/running shortens them,both are good exercises.But you need to do sit ups.push ups[at least 30 each] bike 6 miles and run 2 miles,these are what you are going to exper. in boot camp. dont start off to harsh ,slowly make these your goals and you will achieve your...
Yes you may have an internal hemmorhoid that has burst or a pollop in you colon walls,or lower intestine.Do be worried enough to tell some one,and get to a doctor quick.Internal bleeding could eventually lead to more serious problems and some times death.Swallow your pride and tell someone/seek...