Hello @mkl8425 and welcome to Mayo Connect. I am sorry to hear of your new symptoms. Your concern is certainly understandable. At Mayo Connect we cannot diagnose medical problems but we can encourage and support you as you look for answers.
I see that your GP is running some blood tests, etc. and that is a good thing. If nothing is discovered from those tests, I would encourage you to visit with a GI specialist who might do more sophisticated tests to see if there are any other problems to be discovered.
If you read through several of these different discussions you might find more information related to your current symptoms. You can click on "reply" if you would like to ask anyone about their post and thereby gain some more information.
Have you seen a GI specialist yet for endoscopies (both upper endoscopy or colonoscopy)? Have any CT scans been done yet? These are all things you might consider when you talk with your GP next time.
Will you post again and let me know how you are doing?