Vomiting at nightime

Ive been strightup vomiting at nightime for the past week, I don’t get nauseous ! food just comes up randomly when I’m laying down wanting sleep then later again in the middle of the night. I drink lots of water and eat small meals through our my day. I used to have horrible acid reflux so I cut out any food or drinks 3 hours before bed. I also tend to randomly swell up suddenly in my hands feet and ankles, they swell from just laying down or swell from walking even jut to get to the bathroom. ! Is anyone else struggling with this ?