1) Never, never, never tolerate any abdominal pain for more than a day. Or for that matter any pain that does not go away with any over-the-counter medicine. There is no shame in going to a doctor and telling that you are suffering. An untreated appendicitis could be fatal. Make no mistake: Appendicitis is a medical emergency.
2) The most painful part of any surgery is not the surgery itself. It is the Intravenous saline drips. The saline drip contains sugar and more than a specific rate causes your vein to swell up and block. And then the nurses will search for another point to introduce IV. I had a total of 5 IV punctures and I hated all of them.
3) Ask the surgeon not to cut a hole through your navel. It takes more time to heal. Unless you are worried about the 10 mm scar on your tummy. It is more that 15 days now and I still have persistent pain around my navel, though the scars have all healed. (I will visit the doctor again if the pain persists).
4) General anaesthesia is the best thing that can happen to you, especially if you are sleep deprived.
5) Do not go by what you hear from others. Yes, appendectomy is a quick surgery. Yes, it is very common. Yes, generally people recover after 2-3 days of rest. No, that does not mean you will also recover in 2-3 days. It may take 10 days or more to get back to your normal routine. Depends on your body. Do not be in a hurry to recover. Enjoy your rest.
I am not a doctor. These are my experiences. It may or may not apply to you.