I can’t eat anything

I got diagnosed with SIBO and I’m lactose intolerant, my doctor told me to cut out anything that contains sugars and carbs and now I’m literally just left to eating protein and certain vegetables which is extremely hard to manage and depressing. On an important note I need to maintain this for 2 weeks for the best results but it’s genuinely very limiting. Im also taking antibiotics every 8 hours plus other medications totaling at 10-12 pills a day because of barely having anything to eat my acid reflux feels worse, I work around 8 hours a day get a decent amount of sleep and still feel very exhausted Any advice or list of foods I can actually eat would be appreciated!