My son is almost 4 and we have been watching his Blood work I was told his Blood sugar was low tried to do a fasting Blood sugar on him with that thick orange syrup ( that tastes like flat soda) couldn't get him to drink enough in the time requirement, his PCP has decided to just let go for now, I asked if I should be checking his BSL they said NO, Diabetes runs on both sides of family really don't want to let this go. Should I get a second opinion?