I had this identical problem at the same age. I think teething had a lot to do with it, as my baby's 1st tooth came in at exactly 5 months. Try popping a couple of Hyland's teething tablets in your baby's mouth when she wakes up. They are homeopathic with belladonna and camomile, so they aren't harmful and are calming even if teething isn't the issue. I never believed in crying it out (what in the hell is the "it" here, anyway?), but tried it as a last resort, and it never worked. Some babies are high need (read Attachment Parenting by William Sears), and letting them cry only makes them more upset. It would be worth it to try a side-car attachment your baby can sleep in attached to your bed, so you can get her right back to sleep before she totally wakes up. With all of the colds, try using a humidifier, Little Noses drops, a snot sucker, and elevating the crib mattress. Contrary to some opinions, co-sleeping is NOT a "bad habit". It is what is done is most parts of the world and has been for centuries. There is NOTHING wrong with bringing your baby into bed with you, or having her in your room. Whatever situation creates the best sleep for your family is the right thing to do. If you are nursing, by all means nurse your baby on demand. Keep in mind too that many babies are not biologically capable of sleeping through the night until age 2. That was the case for mine, and it was a nightmare, and I was severely sleep deprived. As my mom told me when I said I wanted my life back, "This IS your life now." Moms just don't get enough sleep, but you will get through it. Just trust your intuition, be patient, take naps when you can, enlist your husband's help and anyone else's that you can get, and surrender to the way it is right now. Good luck and blessings!