I am so sorry OP you have been treated in this awful way and I'm glad to see things are a little better in your most recent post. It is intolerable to leave a patient in pain, and dangerously negligent to then expect that person to have sole care of a vulnerable newborn.
I suggest you call a nurse/midwife now. Ask them I document the fact that your pain has been excruciating, that the pain relief you experienced to date has been inadequate. Ask them what they are going to do about it and ask them to document that. Also tell them that you have feared you might collapse and injure your baby when overwhelmed by pain and ask them what measures are in place to ensure this does not happen again, who will care for your baby if you don't have visitors etc. Have this request documented too.
I absolutely hate this mysognistic dismissal and downplaying of women's pain, particularly in childbirth. Make sure all your concerns are noted and if you are not being listened to, ask to speak to someone more senior. It's not right that you should have to put on your assertive hat when you have had what sounds like a terribly difficult few days. But please find the strength to do it, you deserve adequate management of your pain and every support for recovery.
Please also don't compare yourself to other patients, or allow the midwives to compare you. Everyone's experience is different and yours sounds tougher than most, even if you hadn't had a section it sounds like an ordeal.
Congratulations on your new baby, you are a hero for putting yourself through all that. Please make sure they take you seriously when you say this hurts and something isn't right.
Best wishes for your recovery.