What tests can help address persistent bloating and abdominal discomfort?

Hello doctor,

I have been struggling with chronic constipation for over two years now, accompanied by constant bloating and abdominal discomfort. I wake up every day feeling bloated and with a belly ache, and my intestines never feel even partially empty. This has become a 24/7 issue that is severely affecting my quality of life.

1. I have tried multiple lifestyle changes:
2. I drink plenty of water daily.
3. I eat a high-fiber diet.
4. I walk regularly and work out.

Despite these efforts, the problem persists. While I could potentially include more fruit in my diet, I genuinely do not know what else I can do.

I have visited my GP multiple times, and my test results have been consistently normal:

1. No calprotectin was detected in my stool.
2. Blood tests are normal with no signs of inflammation.
3. Negative for H. pylori.

My GP suggested I might have IBS (irritable bowel syndrome), but since there is no inflammation, I am confused if this diagnosis is accurate. They have also prescribed Polyethylene Glycol (PEG), but it has not resolved my symptoms—it feels more like a temporary fix than a solution.

I am at a loss and feeling increasingly frustrated. I cannot live like this any longer. Could you please provide further guidance or suggest alternative approaches to manage this condition?

Kindly help.