So when I heal, it is largely up-to the group if I am dpsing or not, if they give me a breather then Ill dps to fill in the time.
It becomes pretty obvious in the first few pulls as to how much damage dps are taking. Some dps will literally just stand in bad and expect to be healed through it. Funny that the higher the content you do; the less this works out for them.
Healing a low +4 mythic the other day, the dps DK just stood in sang the whole time; after he died, he had his little winge about me being a crap healer. He actually booted me after me telling him not to stand in crap on the ground.
TLDR - I want to dps, but alot of the time I am healing avoidable damage so cant.