I have sever obstructive sleep apnea,and I'm really tired of always going toawarsd obesity as the reason. It's not always the case. Before my weight picked up I was always tired and couldn't understand why. I'm sure obesity aggravates it but wow. I also have a vit.d deficiency. i have to take 50,000 units once a week because when i was tested my level was a 9. anybody got any solutions? the sun is NOT an option.