Man, that is a tough spot as a pain patient.
So, Smoking it has a shorter time in the body, it processes faster as a D9-THC when eaten, the body converts it to a D11-THC which takes much longer to leave the system and can cause a much more profound "STONEY" feeling.
CBD can really make your eyes heavy and the munchies tend to come from this compound.
Eating vs Smoking has a big differential in how long it lasts and how it is processed in the human body.
I dont know if you can get a vaporizer for Flower (Buds) similar to the Volcano or PAX3- But, you may find that you are more inclined to like it if you try to vape or smoke some high Sativa cannabis.
Make sure what you are eating is made with Sativa, but beware there can be anxiety that comes with this genus.
Also, a Topical application is helpful when infused in Coconut oil or olive oil. The fat receptors in the skin seem to transdermally like to move it to direct relief. If you need a recipe for making cannabis balms, I can provide.
I am not sure if you dont smoke because you don't want to, or do not like too, but it doesnt last as long and you are in more control when you smoke, as you can take ONE toke and walk away until you NEED another.
I have owned dispensaris and treated a few thousand patients, I am totally here to help in ANY way I can. I have articles written on many of these subjects.
I broke 23 bones in my wreck and walked out of the last pain clinic with my middle finger in the air because they were going to make me choose between cannabis and opioids.
Here is the Topical recipe I use.
https://www.greencarenetwork.com/how-make-hot-and-cool-cannabis-muscle-rub
RE: Medical Marijuana