Please ask your doctor if gabapentin might help you through. It is very calming, taken at night you will sleep at least 8 hours solid. You will wake up with after effects that will keep you calm for several hours. That may help with your tummy as well.
Ginger tea - no caffeine? I know that inner restlessness.
I am 3 week into a study with Cedars-Sinai hospital, where I had my cancer treatment. The study is discovering if an app called: ELLY can help relieve all these symptoms. I have to say it has been phenomenal. It is very personalized, every morning at the time you specified it will email you and ask how you are, giving you many choices and degrees of the way you feel. THEN, it gives you specific very short - 1-3 minute encouragement from people who have been exactly where you are. They have gone through or are still going through some very difficult hardships, but have great ideas and boosting thoughts.
I encourage you to download ELLY and see how it can help. You can use it all day and never run out of the categories of help. My best to you - you will see the lighter side soon.