I admire your persistence and focus. It sounds like you have a plan and that’s great that you’re talking to your doctor about it.
Probably just a random coincidence, but the one time I had a panic attack was in my early thirties when I was serious with weight lifting and biking. It literally happened at the gym. I had to lie down on the floor and wonder what the hell my heart was doing. It was scary.
Weight lifting is a great complement for running, but the lifts, reps, and frequency that I see runners doing are very different from what a body builder’s program is like. Most resistance programs for runners that I’ve seen are relatively high rep, lower weight, and targeted on core, back strength, legs (including focusing on tendons), etc.