We started getting them about this time too - maybe a little earlier?
Teeth and tiredness do play a biggggg part in them.
We have the most brilliant teething remedy from Weleda. If she is being a right madam, we give her a dose of that (just 1/4t powder in a teaspoon with some water) and she swallows it all down no problems.
Sometimes a second dose after about 20mins is neccesary, but it makes an enormous difference to her outlook on life on troublesome evenings.