I recently bought a pse spyder bow.i'm aman 215lbs 5'10" is this bow to small for me @ 28" of draw?

The true way to tell is to take it to a bow shop and have your draw length measured. I am sure there is some adjustment to the bow and if it is not enough you can probably get new moduals for the cams that will do the trick. If you are worried about the actual size of the bow itself many archers are shooting short Axel to Axel bows with great success. My AR34 is only 34 inches long and shoots flawlessly.