Hello, Welcome to Just Answer and thanks for your question. Massage is unable to hurt your interior organs. The worst it will do is cause some sore muscles and perhaps bruising. You will need to see your doctor to determine what is wrong. Possibly it is just a reaction to all the stress of your family loss causing the pain and fatigue. It can often cause physical as well as mental symptoms. Your doctor would also run blood tests to check for things like anemias and thyroid problems.
Blood tests would determine either anemia or thyroid issues, although it would be highly unlikely to develop a thyroid problem if your numbers were good just a few months ago. You are most likely having a reaction to the death that has increased the anxiety issues you were already having. If you are not currently on medication you should see your doctor for a refill.