WRAG Appeal or Not !

I have migrated from IS to ESA and been placed in the WRAG. I would like to appeal this decision but have been given so much conflicting advice, my head is spinning. To-day CAB told me to be grateful i was in wrag as most cases they are dealing with are people who have lost their benefit following an assessement. They advise that "unless i was half dead" , if i appealed i would most likely loose my ESA as well, but it was up to me !!!. I phoned the Income Support reassesment unit and was told if i want to appeal i only have a few days left, they will look at it again but in the absence of any further evidence, the decision would stand. I haven't seen any paperwork, but there are two things i think i can get a supporting letter for from my doctor. (a) I cannot mobilise more than 50mtrs without pain/discomfort, breathless etc (b) I have a lump on the lymph gland on my face which has caused some swelling, muscle weakness and pain when trying to eat, and i have to stop because it becomes painful and uncomfortable ,or anxiety/depression/panic attacks, which have not been made worse because of this situation. I don't know what to do, either attend the WRAG (which i don't feel i could handle too well ) of have confidence that i can be put into the SG....HELP!!

Sorry forgot to ask ....On submitting an appeal on the WRAG decision, once i have viewed all the paperwork, if i feel i would have little chance of being placed into the SG, can i withdraw my appeal at any time without loosing my ESA. On submitting an appeal, when they review it, can the decision maker if they want to, take away your ESA, or this only done by a tribunal, any information as to how frequently this happens to people appealing this decision. If i submit a doctors letter after my GL24 , can it be looked at once again by a DM or does it have to proceed to appeal regardless.