I just started using a cpap a month ago for mild sleep apnea. The dr has the levels set at a 5 for the amount of pressure to use during the night. It hasn't done much in the way of giving me more energy. SO...my brother has one and let me borrow it. His adjusts during the night to how much pressure you need when you stop breathing instead of staying at a 5 all night. Last night I used it and the records are showing that it went up to a 14 during those times that I stopped breathing. However, I woke with a migraine at 4:30am. Could this be from the added pressure? Would love some opinions as this is so new to me.