for me, when having my period, i am much more sensitive to the effects of drugs (this includes alcohol). be careful.
about grumpy people: most of the time i am not grumpy, but i tend to depressions and sometimes to a negative view of life. and i know, that life is much easier, when you take it easy. but taking it easy is sometimes hard as fuck. even though some people defend their negativity and call happy people "naive", i don't think that they choose to be grumpy. you can affect your view on life, but it is work and it will not make you instantly happy. and if your problem is pathological your influence is veeeery limited.
oh, i forgot to admit something.
i love, love, love the scent of my bf. sometimes i stick my nose in his armpits (especially when he is sweaty) and cannot stop smiling. never met a human being which smell was so damn fucking great. i am totally addicted to it.