K.L.
hi, R.!!!
I have a 15 mo daughter and she is lactose intolerant. I could breastfeed her for only 1month (we found out she was when she had 3weeks). She was taking the formula without lactose because she didn't want the soy milk. For sometime I tried giving her cheese sticks or yougurt, when she started with solids but she was constantly with a runny nose, rashes on her skin, diarrea, etc. So, since 8 months I took all dairy from her diet... It is hard (even snacks for her we have to read the labels) but she did not have any thing like those colic that she was having before.
By the way, we use regular milk with no lactose, soy yogurt, etc
I think it will be worth it if you try it!!
Good luck, and you can write me an email with you need any more help (I had the same problem being Brazilian in USA... And I'm also with no family here...)
Good luck