I'm 6 weeks post abdominal surgery. I'm 45 and had debulking surgery for ovarian cancer, so my operation was more extensive than yours will be. I had a total hysterectomy, spleen and appendix removed, plus work to bowel, liver and diaphragm. I had a vertical incision held together with staples. I was in kept in hospital for a couple of weeks before being discharged as had some issues with a sluggish bowel and low level infection.
My pain was kept under control well in hospital - I had a PCA with Fentanyl to use as well as IV paracetamol.
The nurses will make you a small cushion to hold against your wound when you need to cough and get out of bed.
Physio will also come and check that you are able to mobilise before going home. I was also provided with some disability equipment such as a bath board, a bed grab rail, and a toilet support rail. I don't need these now, but I was very weak when I first left hospital and it made me feel safer and reduced the risk of falling.
I had no issues with gas pain afterwards (not sure why) didn't need l peppermint tablets or tea.
I had to wear support stockings for 2 weeks. They will supply and fit you with these after surgery.
In just found myself feeling extremely weak for first 3 weeks after surgery and struggling to walk as my core strength and muscles need to build up. Which I found a bit of a shock.
Once home I was told to take paracetamol and Oramorph for pain relief. But I was really struggling to manage the pain. My GP prescribed a low dose morphine patch which gives continuous pain relief which has helped massively. I felt guilty asking for better pain relief but paracetamol just wasn't cutting it and the doctors didn't want me to have tramadol or codeine due to constipation risk.
My staples were removed in hospital. The District Nurses attended daily for the first 2 weeks to give me anti-clotting injections (too wimpy to do it myself) and change the dressings where the drains were.
I think @user0ne's estimate above of 8-12 weeks recovery is probably accurate.
I can potter about at home and cook quick meal, but struggle walking for more than 20 minutes at the moment as it feels sore in the tummy area. My DH pushes me round in a wheelchair if I have to walk longer distances or I go to the supermarket. Sleeping is uncomfortable too as I need to sleep slightly propped up if lying on my back or cushions against my tummy if lying on my side.