Hi, yes, I'd be concerned about laminitis, if she's been on/off lame & on multiple feet. With further pics, you can see there are some issues, but not at all what I'd consider major ones, so no need for 'panic stations' and IF it is laminitis, with good management you should be able to head off any further probs.
I gather you shod her to try to make her comfortable? While shoes are indeed a commonly effective palliative, I do not think that is a good idea at all, if we're talking conventional peripheral loading rims. Rigid steel rims which put the whole load onto the walls, are potentially problematic for a number of reasons, but especially on unhealthy hooves, of a horse who may be suffering bouts of laminitis, peripheral loading rims can cause some serious repercussions. So I'd first & foremost, get the shoes off her, and if she is not comfortable even on soft footing, then I'd pad her feet - you can just use closed cell foam & duct tape as an emergency, or you can use actual hoof boots. Of course, I appreciate that I'm just an anonymous voice saying this & would not want you to take my word for it, but I do urge you to look into these matters further. barehoofcare.com is one good source of info - despite the name, from a Master Farrier who is not adverse to the occasional set of conventional shoes(just saying so you know he's not a 'barefoot fanatic').
So, as said, hooves don't show anything major, but I've marked a couple of your pics to show what I do see as problematic. As said, the quarter flares are quite major, but the stretched toe doesn't look too bad. It concerns me that it appears that it's almost the whole height of the hoof capsule though. I drew on your pics. Side view shows the green line where, just following the plane of the top of the capsule & looking at what's above the capsule, heel height etc, I imagine the dorsal wall 'should' be. Also approx where heel should be & how high - it's a little high & a little forward.
The sole pic, you can see the wall appears to be separated all round(hope at least the shoes weren't fit to the foot in that shape). Pic appears to be not quite squarely taken, and with the hoof not freshly cleaned out, can't be exact, but I've marked approx where the heels should be, where the 'breakover' should be(those can be worked out with ELPO guidelines), and pointed out that the bars are overlong, have run over the sole.
**Again, these are not major issues and the hoof looks pretty reasonable otherwise, but considering lameness as well, pointing out everything I see, for you to consider.
Oh & I wouldn't personally get too excited about IR testing. 'IR' is not a 'disease', but a *natural body function* resulting from too much/chronic 'good paddock' so to speak. While some genetics are more sensitive to others, ALL horses are 'prone' to it, just like all people are, if they live on junk food etc. Therefore, I think it's prudent to just treat all horses as if they're IR or 'at risk' of it.