Getting hooked on painkillers?

Could someone please help me understand what exactly is happening inside my body right now? I’m trying to figure out why this is occurring and if there is any way to prevent it, assuming that’s even possible. To be a bit more specific, it feels as though I have somehow developed an immunity to standard pain relievers—specifically Tylenol and those milder options that just don't cut it anymore unless I turn to Voltaren. At this point, I really only reach for a pill when I'm dealing with cramps, because frankly, that kind of pain is just unbearable, or occasionally when I have a headache, though I try not to take anything too frequently. The issue is that lately, nothing seems to touch the pain; Tylenol, Motrin, Tylenol, or even aspirin simply don't provide any relief at all. Currently, Voltaren is the only thing that works, and even then, I often find I need to take two tablets just to feel some semblance of comfort. I have this nagging fear that I'll soon find myself needing even higher doses of Voltaren just to function, and honestly, that thought is a little frightening. Thank you.

It’s this crazy cycle where the more painkillers you start popping, the more your body basically shrugs them off—like, "Oh, is that all you got?"—and before you know it, you’re needing double the dose just to feel even a tiny bit of relief.
Seriously, try to keep the pills to an absolute minimum.

If you keep going down this road, you're eventually going to find yourself begging for Tramadol at the local pharmacy or pleading with your doctor just to get a script...

Cramps? Nausea?
Then nothing about your situation is surprising. I recall starting out with rather significant doses myself—taking about 400mg of Ketorolac Forte daily over a span of four or five days—and I certainly wasn't increasing those amounts. Yes, the body builds up a tolerance, but only if you are consuming them with relentless frequency. As for Voltaren, for some inexplicable reason, I have never reacted to it at all. Not once.
Currently, however, Motrin—just the standard version—is providing me with relief.

It is entirely plausible that the pain itself is simply intensifying, or perhaps you are reaching for pills far too often. You really ought to stop relying on headache medication; you would be much better served by sticking to herbal tea and actual rest.

Have you looked into acupuncture yet?
If your period is driving you absolutely insane, just go talk to a gynecologist about getting an IUD like Mirena. Apparently, it works wonders. It stops the periods entirely and everything else should be fine. They can even do it for women who haven't had kids.

Ugh... honestly, I get chills just hearing someone mention Mirena. My mom ended up with such insane bleeding from that damn IUD she almost died...
Honestly, you’re better off heading to a pharmacy where you can actually talk to a pharmacist who knows their stuff—someone helpful who can point you toward a decent painkiller. Because when those period cramps really start hitting, neither Tylenol nor Motrin, nor anything else you listed is going to cut it (even though they’re basically the same thing, whatever..), and obviously, Voltaren is going to be way more effective since it's stronger than all that junk!
Something relatively new for treating dysmenorrhea is the Nitroderm patch... it’s actually been pretty effective for those heavy-duty pains...
Anyway, here is what I found regarding the patch

Honestly, I’m still just weighing my options when it comes to Mirena. Most people I talk to say it’s great, but my godmother is totally sketched out about the hormone aspect. I don't know...🙄