Hi. I went to the doctor yesterday morning and he thinks I am developing asthma. He prescribed me an inhaler. Ventolin HFA. It feels like it is working. The tightness in my chest goes away when I use it and I can breath deaper. But now after a day of using it my lungs are sore and feel weak. Is this typical when you use an inhaler for the first time? Should I be worried? Please let me know your experiences with this inhaler as well and maybe some tips . Like I said this is all new to me thanks!!