Sometimes I'm getting light headed and a tingling in my fingers. I can breath ok (in the sense that air is going in and out of my lungs), but feel breathless. Using inhaler seems to help, but not immediately or dramatically. I only get these sensations when asthma is giving me trouble and I have to be conscious of keeping an inhaler with me.
Is this a side-effect of asthma or more likely to be something else?