I had the TIF procedure 3 weeks ago. I had a lot of discomfort for about two weeks, though I had a perforated ulcer repair laparotomy one year ago and the pain is not even comparable to the pain I had from that recovery! It slowly decreased and has, for the most part, subsided now. As long as you continue to take it easy and not do too much strenuous activity, I think you will find that the pain will decrease.
I just got the ok today to start eating whatever I want, just being sure to chew everything completely and stick to small meals/portions. so of course I was excited about that after 3 weeks on liquids and soft foods, so I tried a couple of "real" pieces of food...it isn't necessarily going down that easily right now and my stomach doesn't feel so great after, but I am sure that will all just some take some time for my stomach to re-adjust to "real" food. But I have had not had very much reflux at all since the surgery, so I really feel like it was all worth it and that it has been successful. I do still have some of the same symptoms of GERD that I was having before the surgery, but they are not as bad as they were before the surgery so I am hopeful they will all dissipate. My surgeon said I may have some symptoms from time to time and that that is normal.
Hope your recovery goes well and that your pain and discomfort go away quickly for you!