Totally fed up with mood swings

[VeritableSmorgasbord]

I'm not putting this in mental health as a) I truly truly don't think I have a medicable mental health problem, and b) I can't think where else to put it.

Most of the time I am pretty upbeat and I would say happy. Contented. I have a lot to be glad of and grateful for and I have things to look forward to. I have nice friends. I get grumpy before my period (not always though) and I can be waspish but I'm not deeply unhappy. I like life.

And then every so often my confidence just plummets. I get really moody and I feel very foggy. It's often in reaction to a social occasion where I've felt a bit out of my depth in some way. Sometimes I get it after seeing the in-laws, I find them hard - on a different wavelength really. It can last days or weeks and I don't know what brings me out of it, but once it's gone, I'm back to what I think is my underlying self again.

My question is: is that what depression is, and what do you do if you basically feel happy say 80 or 90% of the time but have this kind of mood? Anti-depressants seem a bit of an overkill but I'd like to be able to handle this.

Ah i wouldnt say its depression.You probably just feel out of your comfort zone really! Have u spoke to your partner about it? My partners family are the same and sometimes i dread seeing them because i have such different views from them and i feel like im just left on my own.do you and your partner rown about it? Because that wont help lift your mood x

Thanks for your reply cheryl.
No, we don't row about them, and I stress it's not just them that bring it on, it's less predictable than that. But it is like a plummeting in confidence.
I don't like it, it's like there are 2 of me, one quite happy and capable and one who can't even pick up the phone to sort out basic stuff.