Absolutely could be because of allergies. That being said, your meds are simply masking symptoms and not doing a very good job either. You need to get to the root of the problem. Allergies are reactions to things that our bodies should be able to handle...God given grass, flowers, dogs, etc. If you are attacked by allergies, then your immune system is not working well at all. There are multiple ways of boosting your immune system. Detoxing your home, taking an multivitamin that is absorbable, and if you still need help, there are additional supplements that will jump start your body to make the antibodies it needs. I used to wake up to a hot wet compress to get my eyes open in the morning. I know have an inside dog and have my windows open! Detoxing is simply and can be inexpensive if you do it the way I did.
Hope this helps!
M.