i am a lvl 20 resto druid and i have some one else playing to help me do damage so, the question is should i stay or should i respec to feral or balance.

well if you want to do a whole lot of instances you should stay resto, if you want to quest even a littlebit (alone), respec!

Peace
(a resto lvled dr00dle :P)

There is a priest in my guild that leveled up as holy/disc spec.  I would think if a priest could do it, a resto druid could just as easily.  Might be challenging, and you would defitely be a baddass resto spending all that time in resto spec.  But you will not level as fast as you could with another spec.  The fastest leveling is with feral. 

I leveled to 60 fully in resto spec, found it ok even though I solo play the vast majority of the time. I decided to respec to feral to get to 70 as I found healing in Ramps and BF pretty tough as a 60 resto and have leveled soso easily since. Will probably go back to resto at 70 but I would definately go feral to level

I'm a 65 Resto Driud. Have been resto since I had a choice. I have had no trouble solo questing and leveling. I guess in the end, it all depends on how you prefer to play.