spotty that would really irritate me too! Can you offer to do a couple of extra hours on another day or volunteer to be there to answer the phones/ do some filing or something??
fod don't feel bad! You've done an amazing job and I honestly do believe that if you feel you need a break then do what is right for you.
I was finding bf so stressful it really helped when another mummy told me about her experience. She fed her daughter for the first year. She had it in her head that that was what she was going to do. But if she was honest she didn't enjoy the last three months and with the next she plans to do whatever makes her and the LO happy. Basically, if you or baby are not enjoying something, for whatever reason don't feel bad about stopping or changing what you do.
DS didn't notice the daytime switch to bottles and he loved being able to see what was going on while having a drink. I felt much more relaxed because I didn't have to fight him to feed him - or spend a lot of time repeatedly exposing myself 
Can't imagine feeding him with all the teeth he has now, I take my hat off to all those braving teeth!!
DS has a cold and two molars are partially through. So I'm hoping that the same two will appear on the other side and we can go back to a more cheerful toddler. 