Bloating Stomach

I have read these past posts on bloatness and so many different opinions,
but did anyone ever find out what caused those problems?. I have the same problem
with a big bloating stomach with only a small amount of food was eaten. I look
pregnant and this is so frustrating. I have a thyroid problem, well no thyroid, it
was killed way back and I take medicine, so that is not the problem, I am eating healthier. I
just made an appointment with a Gastro, Dr. and hopefully we can solve this. Any suggestions??