I'm not that tough but I did turn down the morphine pump for my recent gut surgery. After that, I go two Ultram and then went to Tylenol. for one thing, opiods slow down your gut and that's the last thing you need when you're trying to get it going again. I really don't perceive pain in a normal manner and it shows up in genetic testing...
Not to be TMI but that's 100% exactly why I personally won't take them either. I've only even taken pain meds when I had a couple hernia surgeries in my 20's. The pain was off the charts and I couldn't even take normal steps walking. I tried to compensate the pain pills by eating 'ruffage' like salads and it still gave me bad problems. I haven't taken a pain pill since no matter how bad I've hurt and I've had two knee surgeries since.
BUT... both my parents absolutely could not/can not live day to day without being in excruciating chronic pain. They needed/need daily opiates just to keep going.
Sorry for changing tense constantly but my Mom had probably 6 surgeries at least in the last 10 years and just passed in Aug 2016 (Lung Cancer) and my Dad is currently suffering from Degenerative Osteoporosis and COPD. So I've been dealing with this issue constantly the past 6 years and see the agony from the outside everyday and all I wan't to do is ease their pain.
People like this jackleg Sessions make me violently angry with their obtuse ignorance. It's one thing to think that some people abuse opiates (which some do) but it's absolutely a whole other unbelievable mindset that someone could think people with severe disabling daily chronic pain and/or illnesses just need to 'toughen up'.
Jeff Sessions needs to go spend 4-6 months at a Cancer treatment clinic with people post-surgery on chemo and tell those people and families they just need some aspirin and see how that goes. I know how I'd react. He wouldn't make it out I don't think.
As to why some people have different thresholds of pain?.... I have no idea but it doesn't mean the pain isn't real and completely unbearable. I just can't believe how unsympathetic and wholly ignorant Sessions is as a person. He is complete garbage and barely qualifies as human.