Alright, first off, this is embarrassing, second off, this is going to be a long question...

This is in the state of Minnesota.

I was arrested a little over a year ago after getting in an altercation with my girlfriend. We did not nor had we ever lived together. I was charged with 5th degree domestic assault (this is in the state of Minnesota). I hired a lawyer, went through a couple months of court proceedings, and eventually got the charged reduced to a disorderly conduct, and plead guilty to that. I was given a year of probation, and I am still on probation right now. I am a big time hunter, and one of my concerns was not being able to possess of purchase firearms with a DV conviction, which was one of the reasons I took the disorderly conduct. According to my lawyer, that would in no way interfere with my right to possess or purchase firearms.
Anyway, so the other day I see this really nice shotgun that I want at a gun shop, so I try to buy it. The dealer calls me in to the NICS, and they put me on "hold" status. He calls me back today and told me that I was denied. I sent the letter to the NICS, asking for the reason for the denial, and am waiting for their response. I have been reading things from their website, as well as from various other websites i.e. FBI, ATF, etc. Am I banned from buying a firearm, simply because I was arrested for Domestic Assault? The list of reasons prohibiting someone for possessing or purchasing a firearm only state people "convicted" of a "misdemeanor crime of domestic violence." My disorderly conduct did not have anything about domestic violence attached to it. So I am wondering what is going on. Part of the deal was that I would do no same or similar for 1 or 2 years (can't remember), and I was given a year of probation. I am still under the veil of both of those things, could that be the problem?

The other thing I am wondering, from what I have dug up on these various websites, the problem could be that my disorderly conduct is a misdemeanor, and I showed a threat to harm a person I was in a qualifying relationship with. From everything I can tell, the states definition of a qualifying relationship is met simply by being boyfriend/girlfriend. Per the NICS website, it seems that a qualifying relationship on the federal level, has to involve being in a similar situation as a spouse...which it then defines as basically living together. We never lived together.

Lastly, I was never told by the courts that I couldn't possess firearms, I was never told to surrender the firearms I already had either. I am now worried that I can't even have the guns I already own. Any insight into my issue here while I wait to hear from my lawyer would be greatly appreciated, thanks in advance.