i initially had symptoms of bloatedness without constipation. Then that bloatedness feeling turned into sharp pains in both my upper and lower abdomen(mainly upper). When those pains started i also felt pain in my back. I couldn't sleep at night because if i layed on my back my stomach would hurt, and if i layed on my stomach my back would kill. I took x-rays and they showed absolutely nothing, but ask for a blood test to check h.pylori because they won't offer it and half of the doctors don't even know what it is. But a word of advice, if u r throwing up anything that looks like coffee grinds, or if your shit is dark black and tarry, then go right away to the doctor or hospital because those are signs of stomach cancer. Don't mean to scare you, keep me posted with what the doctor says.