I really don't like painkillers. I never get headaches, unless hungover or dehydrated, and I have a primitive belief that pain is there to stop you damaging yourself so taking painkillers when injured increases the risk of increasing the damage.
After my hip operation I was on 400mg Ibuprofen 3 times a day. Now Ibuprofen is an over the counter, not prescription not particularly strong pain killer. However I must admit I did look forward to taking it.
I've been taking it pretty solidly for 5 weeks now, and I am just lazy. No drive to do anything, which is kinda bad when you're selfemployed. I did put it down to pain, trauma, depression at my injury.
Well 2 weeks ago I cut it down to 2, and since 2 days I just take one at night. I won't say I wake up wanting to climb mountains, slay dragons, and save the world, but I am definitely more energetic now, and to hell with the pain.
However I do know people who just take it almost daily for headache, period pains, God knows what. And they're also not very energetic creatures. I smell a connection.