The truth as I see it as a hoof care provider.
If the horse has basically went 7 months without any kind of a trim or hoof care at all and had shoes on the whole time till recently to boot, Id expect soreness and some very bad feet. The horse probably has infected frogs with long toes and under run heels and just overall poor hoof form. Probably some bad thrush and/or and abscess brewing. Show us pictures and we can tell you more specifically.
Here is the hard part to hear but the truth no matter how you try to hide from it. I believe recognizing the truth for the truth is always the best. It is the only way things change. Plus it may help someone else in the future reading this post recognize that they cannot allow a horse to go 7 months without hoof care no matter what the reason, because whether out of simple ignorance or actual intent, it IS neglect. Neglect is the failure to fill a need plain and simple. Neglect - Wikipedia, the free encyclopedia
There is no way to paint that into a pretty picture and im sorry. It is what it is.
BUT! Now they know and you know and it never needs to happen again. Done.