It doesn't sound like it, but I want to ask to make sure. Did you try switching to 5x3 or doing alternating light days at the end of your LP? Or did you go straight from H/L/H to intermediate?
And yes, it sounds like you beat yourself into the ground and then doing a hard transition. You will probably need a small reset. The transition without reset from LP to intermediate (using your last LP heavy day as you're new heavy day) is only something I would do for someone who hadn't reset already on LP multiple times.
For intermediate programming, why would your light day be at a 5% reduction of your heavy day? Where did you get that?