Sounds normal if you're just really used to playing a certain way. Back during 1.0 I only played dps and coming into 2.0 because the dungeon queues were so long I ended up playing on whm then eventually sch for raiding.

I basically ended up getting stuck playing healer for a very long time. I really enjoyed it but after awhile it started getting boring so I switched to my drg but in group content I never felt I performed as well as I could on a whm or sch.

I also think on healer you get so much control and power that going as a dps you feel far more vulnerable. I guess a lot of it comes down to personality types.