I took my dog jogging now hes breathing heavily and has a fever..?

So I usually jog every morning at 5 am. My 3 pound yorkshire terrier is 4 years old and I decided to take it jogging with me. My daily jogging is 1 block and takes me 3 mins to finish.. anyway after we finished we went home and I had 6 chocolate doughnuts and I gave him 3 as a reward.. I feel bad for taking him jogging because now he is having trouble breathing and is really warm.. should I give him more food to calm him down? Maybe he wants more food?