Update here, so unfortunately at least for now.. we've sent our dog to my brother in laws at least for a little while or maybe till she is 4-5 months old to see if her coat changes..
But.. i've changed one variable at a time so far and already i'm improved which has me wondering.
I opted to just clean the kitchen area, mopped it good and entire area, which is where she spends night time and sometimes peed/or pood in general there during the training phase so far..
I've left the air units running.. i havent vacuum the carpets (which turned out the vac had a clog and probably for weeks on the roller unit).. im still taking the singulair.
In the hours after she left and after cleaning the kitchen area thoroughly i felt fairly normal.. barely that "wheeze".. and up till bed time.
I woke up middle of the night though, with the feeling of short of breath, so opted to do the inhaler, though i think this was more mental and not an issue. In the AM no real coughing this time, barely any congestion.
I know dander takes months to dissipate and given this change, it seems unlikely it was just taking her out of the house that has so far cured things.. i think it might have just been the kitchen area (pee/urine reaction) this whole time, maybe not i dont know. In a few months we will likely try again, hopefully at that point fully trained.