@scotishchic . Helen as probably given you the best course of action to try. Obviously we are all different and you may need to tweak things going forward.
Personally I wouldn’t incorporate any cardio into a weights workout. Yes do cardio as a warm up prior to a weights workout and some gentle cardio as a cool down.
Using weights can get complicated. Heavy weights, low reps, really pushing the weights will invariably cause a fast BS rise during workout. Unfortunately this can be short lived and BS will drop quite considerably even after 6 hrs or more. Will often inject Novorapid prior to a heavy workout to stop the huge spike, it can be scary at first and requires intense monitoring during and especially after the workout. A heavy workout can impact on my BS right through to the next day.
As for trying to lose a few pounds/ kilos I personally wouldn’t train heavy that resulted in my BS rising. This for me would be a HIIT workout. Light weight, high reps, minimum rest. Recently been doing a 45/15 seconds split for 10 sets.
Example. Lat pull down. 30kg, 45 sec steady pace 15/20 reps. Rest 15 sec and then repeat for 10 sets = 10 minutes.
Basically do this with any type of exercise weights or even cardio. Change the splits around on a regular basis, but try to keep the rest time lower than the work time. No need to try going heavy with the weights. Important to do the 10 sets with a good average rep count. This workout wouldn’t require a pre bolus for me, if anything a few carbs maybe required beforehand depending on BS prior to starting.
Ultimately though , the most important thing to remember is that you need to find that balance that burns energy but doesn’t leave you going low and needing to eat food unnecessarily.
Trial and error unfortunately but a bit of patience and keeping a record of workouts and resulting BS levels is essential.
Good luck.