I have been experiencing sharp stabbing pain in my left upper inner thigh. It started out as kind of random but now I can hardly walk. I thought maybe a hernia, but can't find any bulges, and I have no pain elsewhere. I am female, 53, healthy, I think, and active. I'm home, in pain, wondering, should I go to the ER?

I have been doing construction work on my home. Pain started about 1 month ago. I had been doing some heavy lifting. My back felt strained, but hot bath couple days in a row seemed to fix the back pain. The shooting pain in upper inner left thigh kept getting worse and more frequent, especially when getting up from seated position, getting in or out of my truck, and now, walking is almost impossible for more than a few steps.