Uncomfortable bloated stomach

Hi. I have had the discomfort of a bloated stomach for about a month now. I'm a healthy woman, have always been able to eat anything. I stopped smoking 2 months ago and got pheumonia and asthma a month after I stopped. My coughing hurt the top part of my stomach and it's still uncomfortable. I don't experience any pain, whatsover. Sometimes when I eat, even a little, I feel like my stomach is so full it wants to explode and I can't enjoy myself, wherever I may be. Do you perhaps know if this could be related to wheat intolorance or something? Like I said, I've always been able to eat or drink anything.

I generaly eat healthy (no fast foods, pies, soda's, crisps, etc, I rather eat brown sugar, brown pasta, etc)

I would really appreciate some assistance.

Thank you so much.