Have felt nausea after bowel movement the other day. can't seem to release bigger stools and my testes were aching. have felt burning sensation in my pubic bone before that after sitting for a few hours. not a recurring condition and no visible lumps?

Nausea w/ BM: Blood? Mucus? If constipated relieve that is by drinking about 2-3 liters a day fluid water and solute (with electrolytes so you don't dilute sodium), prune juice may help, Eat greens about 1 bag a day of spinach or lettuce ,other high fiber foods like avocados ,strawberries, At times Miralax per instruction may help. But would also follow up with MD , Check for mass, or obstruction.