Faith - I don't think there is a way to clinically prove this and a physician may be hard pressed to get in the middle by saying one way or another because it would be difficult to prove. If you know what I mean. However, discussing this with your neuro, imo, is important. And, yes, this is out of character for you and definitely a cause for concern - as many of us on here expressed.

The brain is so complex, hence the neuros can't grasp it all - they're just "practicing". j/k any neuros reading this. With many brain damaged patients (MS or not) there are a plethora of behavioral/personality changes that CAN take place. Some subtle, some not so subtle. Throw in some medications, depression issues, hormones, etc., etc. and . . .

I did find this and thought you might find it interesting. . . (Maybe that could be your "proof"). This could possibly, and I use possibly lightly as I am not in your situation, etc., be what you are experiencing.

http://www.ncbi.nlm.nih.gov/pubmed/12056938

The bigger issue here is to not sweep it under the carpet because DH is forgiving. It may lay dormant under the carpet and resurface. Please, talk to your dr about this.