Thanks for writing in.
The dryness in your mouth and getting up frequently at night to urinate could be due to diabetes
or prostatic hyperplasia
. The dryness of mouth can also be due to a side effect of the inhaler that you are taking.
Please get yourself screened for diabetes using a fasting blood sugar level and a post prandial blood sugar level. If this is normal, please see a surgeon who can do a per rectal examination
and rule out an enlarged prostate
. This could be causing your symptoms.
For improving the activity level, I would suggest you walk for short intervals. Also, pranayama should help tremendously.
Hope this helps