No worries Andy, both are pretty normal. I still clunk very lightly, only once or twice and only when I'm brushing my teeth. Go figure.
At your point, I was clunking quite a bit (it seemed), especially when doing new things or exercising. I think the smaller muscles just get tired and can't batten down the hatches on the capsule as much as they can later, and so ... clunk.
Groin pain came and went for me, especially when I started doing some more demanding exercises. I usually took some time to let it calm down, stepped back for a few days, then slowly built my exercise back up again.
One time I remember, I had just begun walking/running on the treadmill (about 9 months or so) and I had been doing leg presses for a bit with low weight (about 190 lbs), when A Bright Light went off in my head and I decided to combine the two. At the beginning of the third set of reps, I felt a twinge in the groin area. I stopped, showered and left, then for the next three days or so, every time I bent down, I felt a pull in that area.
After about 5 days or so of rest, voila' ... no more pain and I went back to working out, alternating the leg presses and the treadmill. No pain. Other times, the groin still twinged every now and then, but I rested the same way (immediately) and it was good.
Now, I can do both one after the other with impunity, no problem - the muscles overall have gotten a lot stronger, and I'm expecting a second wave of further strengthening as I close in on my 2 year anniversaries.
So my advice is to be patient with it, stop doing what hurts immediately, rest and ice, then go back in a moderate way and build your strength.