Asthma not improving

I'm frustrated. Have a history of asthma--although only dealt with it on and off, not regularly until now. Started with a sinus infection, bad headaches, shortness of breath in January. Never dawned on me that the shortness of breath was from my asthma. Finally, after visiting many specialists I decided to go to Allergist and found it is my asthma. Have been on Symbicort 2 months ago. While my symptoms aren't terrible, they're not going away either. I hate this-walking bothers me, climbing steps, lifting things. Had a full pulmonary function test and was told this is my asthma and nothing more. Supposed to wait to see dr for a month, but I don't get why dr isn't have me try something else. Maybe it's too much to expect to feel "normal" again. I am 69. Can anyone relate?