I'm on oxygen from a asthma attack I had trying to get off o2 but when I do chest gets tight like air isn't moving they and wheeze I take treatments?

Asthma. Sounds like severe asthma. I highly recommend that you see an allergist to determine your triggers and get it under control. You may be a good candidate for xolair treatment. Find an allergist at www. Aaaai. Org or www. Acaai. Org.