First purchase/result question

I recently received my medical card for the purpose of dealing with chronic insomnia; I smoked a bit of pot here & there in college but that was 25 years ago. The pharmacist I met with suggested I start with Tasteology troches (the 5 mg THC/2.5 mg CBD variety)--I wanted something that doesn't involve smoking because my lungs are super sensitive now. I've been taking one troche each night for the last few nights. The budtender and pharmacist both suggested I eat something a bit fatty before sucking the juices out of the troche then chewing up what is left of the troche, and I followed their directions (each night I've tried something different--an ounce of cheese, a spoonful of peanut butter, a cookie). Here's my question: is it normal to not have ANY effects at all from the troche? Not only is it not helping me sleep, I feel nothing except for maybe a slight headache. I thought maybe because I have the world's slowest metabolism that possible effects could be delayed, but no. I've not felt any effects at all in mood or sleepiness. The pharmacist mentioned that I could quarter or half a troche to get a larger dose but suggested I not move up too quickly--but I also don't want to keep doing the same thing over and over, expecting different results. No person will react the same, I guess, but because Im new to all this, I don't know what's typical. If anyone can share their thoughts (or advice), I'd be appreciative.