Breaking issues. Claustrophobia right?

Hello doctor, Im facing breathing issues from past 1 year.  In the middle of the day or when I'm at work place or in the night while sleeping suddenly I stopped breathing I feel suffocation, then I start taking breath from mouth and go out in the open area nd start relaxing myself but I think it's not the solution and I have no clue why is it happening with me . From past 2/3 months this problem I'm facing so much before it was rare for me. Even one week before I have checked my oxygen level it's was just 60. Sometimes my hands starts shivering, sometimes I breathe to fast then normal and sometimes my nose leaking water😑. I don't know why it's happening like because of not eating proper food or its related to nose please tell me what is this disease called? Please if possible give me the solution and let me know what it is ? This isn't claustrophobia right?