<human>: I tried flying a glider this past weekend. We were gliding at 2500-3000 feet . I started to feel a bit light headed and noticed back sweats. By opening the vent and getting a rush of cold air on my hand I was able to direct that air on my face which seemed to help. I want to do more gliding but not until I find out why this occurred. ideas? ps- I am a T8-10 Paraplegic
<bot>: Hi, I had gone through your question and understand your concerns. There are two possible conditions that may cause your symptoms:1. Altitude sickness 2. Postural hypotension. Postural hypotension is the possible cause only if you were doing fast maneuvers with glider. Most possible cause is altitude sickness that occurs mainly in highs > 6000 ft. but can occur in lower highs. I think in your case your symptoms are result of a combination of two conditions mentioned above. If you do gliding next time, I recommend you a good rehi Chat Doctor.  Hope this answers your question. If you have additional questions or follow-up questions then please do not hesitate in writing to us. I will be happy to answer your questions.