Teething, growth spurt or generally grumpy

[MumInCyprus]

My DD is 13 weeks and usually a calm baby who loves her routine. However for the last couple of days she has gone off the other end of the scale. She is sleepy at random times and screams when I try to put her down for a nap (she usually self settles very well). She is totally uninterested in playing (cries when put on play gym or in bouncy chair) and just wants to be rocked in an upright position (screams when craddled in my arms).

She seems a little warm to the touch but does not have a temperature, stools are normal and cheeks not particularly red. She is dribbling loads and biting anything that comes near her (her hands, my fingers, rattles etc) but not interested in teething ring (I think it might be too big for her).

Her routine was messed up a bit yesterday which I thought might have something to do with it but stuck to it today. She slept well last night (7pm -4am as usual) but the only place she was happy yesterday whilst awake was in the bath.

Opinions please!!!!

She seems to be teething as you said, my DS never liked any teething rings, so this is not a sign of anything, I give him ice creams now when he teethes (he's 17 months) some babies don't like them / use them at all. When babies are teething they don't like lying on their backs or having water going into their ears so there could be a connection with your DD not wanting to lie flat...
Yesterday was rather hot, so perhaps she liked the bath as it cooled her down a bit? have you read the Wonder Weeks as it will give you the big dates for developmental leaps and how your baby will / might react....