I have Asthma and I started out having a cold one week ago. 5 days ago I went to urgent care and discovered I had an oxygen level of 88. They used oxygen on me 3 times and a nebulizer on me 2 times. They were finally able to get it up to 98, so they released me. Now I still have congestion and I sound like between a squeaky door and percolator. Does it sound serious enough to go to ER or wait and see dr on Monday?