My daughter age 36 has been feeling bad, but no insurance.Her systems are  a knot  in right lower stomach area  with pressure of fullness, excessive gas and urinating. Also felling of numbness in legs from time to time, similar to a hamstring injury, with a large vein in her leg bulging.
Hi. You have really described everything so well. The age, fullness, knot in right lower abdomen with large vein, all gives me an idea to think about a mass causing compression symptoms also. I am afraid to say she needs investigations and further management ASAP. This can be a tumor from an ovary or so needing immediate attention.