I am a 34yr old male. No smoking or drinking. I am 5'8 and 165lbs.

I have looked through several of the posts to this topic but there are so many that I have not read them all, so please forgive me if this question has already been answered.

For last year or so I have had a lot of bloating and belching. About four months ago I was jogging and I starting belching and could taste blood. A few hours later I was passing black stool and new I had a problem. I went to the doctor and he confirmed that I had blood in my stool. Since it was black he ordered an endoscopy. I also have been taking various medications for gerd, but had not been taking them for about a month prior to this incident. I started the gerd meds back up. I had the endoscopy about a week later. It turned up nothing but the doctor said there could have been a small tear that had healed in the week since I noticed the blood. I have not had any incidents of noticable blood in my stool since, but I have been terribly stressed about my health. So much so that was put on anti anxiety meds. For the last month or so, I have been having recurring pain on my left side, under my ribs. The pain is usually at the point where my elbow comes into contact with my side when I put my arms down, but it has been lower and more towards the back. It has not been severe and I can find nothing that either causes it or relieves it. The pain just comes and goes. Is this a similar location as the pain you all have had?

I am scheduled for a ct scan of that area. I have had blood work and I am not anemic, nor am I overly fatigued. What is really freaking me out is this worry that the blood in stool is somehow related and that I have something terrible. My doctor is not acting overly concerned but I never know. Have any of you come across anything that might explain this?

Thanks and I hope you all are feeling better!