It seems like everytime I drink a glass of red wine or take the Reversatrol with wine Extract, I have alot of pressure on my lower back a few days later. I drank 3 glasses of wine on Sat. night, by Monday I had alot of pressure, and had to leave work, it seemed like I was having muscle spasms, by lunch time I couldn t even walk, it hurt to sit down and even walk. I took Ibuprofen 800mg and finally whatever was inflammed was better by 5:30 the next day. I don t think I pulled a muscle, because I ve had that before, it takes longer to heal.