Do you think this could be causing this pressure. It is not really big. The pain radiates from exactly the area under the lipoma. I don't have diabetes but have osteoarthritis. I do recall within the last 3 months when walking, out of no where, this pain presented in this area. I noted it but discounted it and didn't give it a thought. It was like an electric shock. What do you think? I asked my Dr. For a surgical referral. I don't have the pain now. I did have a total knee replacement 2012 at HSS/NYC