At night I have a hard time going to sleep because every time I doze off I jolt up gasping for breath. But now I'm having a hard time breathing while sitting up, it feels like when you get the wind knocked out of you and you're struggling to take a breath and you wheeze kind of... But now also I feel like I'm floating almost, like if I stand up I would fall over, like my body isn't supporting my weight and I feel weak. My throat keeps getting tight when I can't breathe and I'm really starting to worry. Just an FYI I have had a sinus infection the past couple of days and my ears have been draining and stopping up which may be causing the floating feeling. Please help in any way you can thank you!!