I m a52 year old male,I take blood pressure medicine,benocart 20/12.5 just had a complete physical with blood work,Dr. Said all my numbers were fine,come back in 4 months. Today while working in the yard,I bent over to look under the boat,stood up felt light headed and fell out and had a nice knot on my head.should I see another Dr, some type of specialist.strenuous work drains me.