Our daughter is completely disabled now with NDPH. She has been suffering for 2 1/2 years - level 7-10 24/7 with no let up. She was hospitalized in March and received 2 rounds of DHE and she has been extremely nauseous since. She has lost a dangerous amount of weight, has tried literally everything like you. She takes an inter-muscle injection of Benadryl when she has been at a 10 for more than 8 hours (it knocks her out, but she moans while she sleeps). She is on Marinol for the nausea, which only takes off the edge, and is now trying methadone for pain. So far nothing, but maybe after she gets up to the dose they are wanting to try? We are people of faith and are trusting God for answers and for strength daily until we do. Will pray for you all as well.