Well, here I am 1 year after my TIF surgery and it was NOT a success. Somehow between the time I had the TIF surgery and hiatal hernia repair I have developed 2 ulcers in my esophagus, just above the juncture where it meets the stomach. I have been getting terrible reflux and cannot lay down - I am back on medication twice a day which is keeping it somewhat in check. I went back to Gastroentrologist and they did 3 tests , barium swallow, EGD and motility study. (Motility study was by far the worst and I would never ever get one done again.) They stick a tube down your throat through the esophagus into the stomach and make you swallow sips of water. It was horrific (at least for me) as I kept wretching, dry heaving at having something in my throat gagging me. The barium swallow found I had considerable reflux, but no hiatal hernia. So at least that got fixed. But still so much reflux and don't know why. The new Gastroenterologist said from the looks of the pictures I had that I should not have had the TIF surgery that my hiatal hernia was too high up for that. He is suggesting I get the Nissan surgery but I am really reluctant to go through all that again. I don't like the risks of "not ever being able to throw up" and if it's done too tight, I "could have a problem with swallowing." Those things sound like it would be a nightmare not to be able to swallow??? And can't throw up? What if you're sick and nauseous and the only thing that makes it better is vomiting!!??
I can't advise you on whether or not to have the surgery, but in hindsight I would not have had it knowing it didn't help me. But you can't be sure it won't help you so you'll have to make that decision. But I would think that by 7 weeks you should be able to eat what you want if you take small bites and chew well, at least that's what my doctor said.
Good luck on your decision.