9 month not sleeping alone

I need help! So my 9 month old won’t sleep alone. She only wants to co sleep. Around 3 months she slept through the night. Usually 9-11 hour stretches and I was going to transition her to her own room but we had to move in with my parents as my husband got a new job, she slept well for a month or so at their house, doing 8-10 hour nights, in her own bed. Then things went down hill. She was constantly sick with colds that would turn into ear infections and she would only sleep in my arms. Once in awhile she would sleep 4 hours on her own but that was rare. We got tubes put in as she had 7 ear infections in 3.5-4 months. Everyone said that she would sleep so much better after and she hasn’t. It’s been 3 weeks and she’s sleeping for an hour in her bed then refuses for me to put her back down. I try for an hour but then I can’t take it and cave and she sleeps next to me. She doesn’t take pacifiers at all, we’ve done sleep sacks, noise machines, footie pajamas and footless pajamas. She only calms down to either me nursing her or a bottle. She seems to be super gassy at night and can’t get the gas out. Gas drops don’t seem to help. I think the gas wakes her at night and idk what to do. I need my sleep and want it with just me and my husband in our bed. Please help!