How To Treat Severe Hip Pain With History Of Having A Back Surgery?

My 65 year old husband had a stint put in last Dec because of a 95% blockage in the LAD, and he has donee fine until the last couple of weeks, and especially tonight. He was felt a little sick on the stomach so he tried to stand up and get to the bed. He fell back into the chair. In a short while I was able to help him to bed where rested 5-10 minutes. H then tried to get up to go to the bathroom and couldn t get up-too dizzy. He thought he might need to eat something so I made a peanut butter/jelly sandwich and filled a glass of milk. He then wanted cookies (My husband is not much of a sweets eater and is a good weight for his health.) The cookies seemed to settly him down but he wouldn t rest until he brushed his teeth bedside and brought him a urinal. He didn t trust himself that much. He IS borderline diabetic and his glucose measured 171.The rest of the story: SERIOUS back surgery on 5-6 (including laminectomy) and recovered well from that finally after about 8-9 months. Today he was playing with our visiting out-of-state grandchildren and occupying them while mom and dad packed to leave. Regretfully, in a game of kee-the-baloon-in-the-air in the small mudroom of our house, my husband tripped and fell onto his behind, andd is now pretty stove up and sore-complaining of hip pain.I know this is TMI but I m worried to go to sleep. Should I stay away and watch him. I m worried about the dizzyness to the point of blacking out, or almost blacking out. THe second question is of a different but same concern. We are scheduled to leave next week for a 6-month-planned and exciting vacation to the Rockies next week. Should I insist he get thoroughly get checked out before we leave?