What else can be done for my gastroparisis and dumping

Hello, I have severe Dumping ad gastropariesis.  My GI started me on 1 Domperodone 4 times a day.  I also take Sandostatin LAR every 3 weeks for my severe watery diarrhea.  My GI doc is trying to help me to be able to eat food for naurishment instead of my J- tube.  He does not want to if possible to put in a permanent tube because I have so many complications with surgery.  But I may have to have the surgery if the Domperidone does not work.  I there anything else that I can do to help stop the nausea and vomiting every day.  I am at a low weight, underweight and the doc wants to try everything to help stablize my weight and if possible t gain a little.  Does anyone now what else there is out there that I can try to help with the pain, nause and vomiting and the bloating feeling.  I see my doc next Tuesday so I want to be able to ask him .  Thank you for any info anyone can suggest.  Linda