Botox and gastroparesis

I'm a 28 year old female who has been diagnosed with gastroparesis and I have chronic bloating.  I do not suffer from naseau or vomiting, however I immediately bloat as soon as I put food into my stomach.  The bloating lasts for 5 or 6 hours and I have extreme gas due to  the bloating. It doesn't matter if I eat something small, I will still bloat up massively.   I bloat up to the size of someone who is 6 months pregnant after I eat, I can barely keep my pants buttoned.  I'm feeling like I'm living in someone else's body.  My stomach stretches to the point of incredible discomfort.  I'm so sick of dealing with this and none of the medicines are working, including reglan, or domperidome.  

Is there anyone out there that has botox injections for their gastroparesis?  If so, did they work and are your symptoms relieved?  

Please help!