Airhead symptoms and conditions

I consider myself to be a easy going, well liked person....I am 25 and have 3 kids, after the 3rd I decided to go with the Mirena....which I'm now reading might just be causing me all the "issues" I'm having. My husband and I are CONSTANTLY at each other. There are times I get short with my kids(whom I have more love for than anything in this world) over things that should be overlooked or lightly dealt with(better terms, I get snappy). Basically comes down to some MAJOR mood swings which is not me. But my biggest problem is I have absolutely NO SEX drive at all. I try to get myself in the mood or think about it, but just the idea of it does not appeal to me! And another thing I've dealt with ever sense I had it put in, is almost like a lack of focus. I can have a conversation and at the end not be able to tell you what we just talked about. For lack of better phrases/terms I feel like a "blond" an airhead.

I've only been on singulair for 6 days and it is now 4:23am. I just couldn't sleep tonight. I've been having the strangest dreams and I commented to my wife about them. We just laughed it off. Anyway, at this time of the morning, my EARS are "Hissing" so loudly, not ringing, however I do detect a slight pulsating tonal sound in my left ear, that I just couldn't sleep anymore. I've a history of Tinnitus but something has exacerbated my tinnitus dramatically, so much so it is keeping me awake. I think I'll be needing something to help me sleep now. Perhaps I will stay off the Singulair for now just to see if life returns to some kind of normalcy. Could it be a side effect of Singulair. I don't know but I felt like driving something through my head to stop all the loud noise. Has anyone else experienced elevated levels, or a new development of "Ringing in the Ears", commonly known as Tinnitus?