****UPDATE****
After an Endoscopy, my doctor noted that after 9 weeks post op, there were still at least 3 sutures visible INSIDE my stomach. After consulting a bariatric surgeon he was told that those should definitely not be there. So I go to see that surgeon tomorrow to follow up with him and hopefully he will have some answers. If I'm lucky, removing the sutures could solve the issue of dry heaving and nausea. I'll let everyone know how it goes.