Please Help Post Gall Bladder Complications

I have been sick for almost two years now and it resulted in me having my gallbladder removed about a month ago. Since then, my symptoms got a little better but now are getting dramatically worse. Every day when I wake up, the nausea hits me within 10 seconds, then radiates into waves and doesn't stop until I can get to sleep. Sometimes the nausea is so bad it wakes me up. This happens 2-3 times a week. I also have chronic diarrhea, frequent dizziness, and a complete loss of appetite resulting in massive weight loss. Usually when I have a bowel movement, I immediately vomit due to how bad the nausea gets. I have a terrible pain where my gallbladder used to be and radiating into my right side that is almost uncontrollable with the medicine they gave me. I am losing sleep because of the amount of pain and nausea I am having to deal with.

On my last trip to the ER, which happens a lot, they did a CT scan and found a shadow on my liver. I have an appointment to get a liver series done with blood work tomorrow. I guess my question is should I be worried? I sneezed two weeks and tore something small on the inside and am bleeding internally, but they said it's small and it's a matter of pain and nausea control until it heals itself. Could the shadow on my liver be the blood or is it something else?

I am only 23 years old and I can't function enough to work to take care of my disabled mother (who has myasthenia gravis, could this be connected?... I really hope not). I am desperate for answers. Has anyone else experienced symptoms like this? Please help me because I'm getting really scared. I've lost 80 lbs.

Thank you so much for your help in advance.

[Moniac]

Point of Clarification: I have been overweight my whole life so I haven't lost so much weight that I look like a twig. Although, If I lose another 10 pounds or more it could become very concerning. I lost the majority of the weight in the last 8 months. Also... I've been experiencing terrible headaches the last couple of days as well.

If there's someone out there experiencing this, please contact me. I just don't know what to do anymore.