I have asthma, but 2 hrs after using my albuterol inhaler it feels like I need to use it again. Is it anxiety? Sp02 above 97% and peak flow in green.

Need maintenance. It sounds like you are using your inhaler a lot. Would definitely recommend that you discuss with your doc. You would definitely benefit from a maintenance inhaler, if you are not on one, some time short steroid tapers are needed. Workup is sometimes also needed for conditions that may exacerbate your asthma. Do not postpone looking for help. .