Small Lump near Left thigh joint painles

I recently got a lump in the shape of almond and size half sliced almond near left thigh joint which I feel is connected to a nerve I feel as it moves when touched.  Feels no pain and when pressed got mild pain. I have marked the location in blue on pictures. Right after this I got mild swelling and pain in middle back below sholder blade. Thought it could be spasm or sprain due to change in lifestyle and lot of physical wood work recent days. last 10 years very less physical work. Maybe even thought married 6 months back and backpains are common. Lump isn't Not sure if this is problem or some issue. The change in lifestyle would be some physical activity like very mild 15min workout stretches and 4km walking and jogging in a day. I used to be active during college days and things changed last 10 years. So wanted to keep myself like old so slowly started all this and also started some wood work. Married 6 months back, so life is normal... but it was bothering me why did lump came...