I Have Had Severe Bloating Which Has Gotten Worse Recently

I have had severe bloating which has gotten worse recently whenever I eat and now whenever I eat or drink. I'm seriously fatigued, I have nausea all the time and I've lost like 10 pounds here recently. It does not matter what I put into my body, I bloat and hurt severely bad. I can't go poop, and if I do it's dark and barely anything.