Not enough energy to heal ??

This is a new problem for me. w/m 20 completed game blah blah. I was helping a buddy do blood &smoke, and whenever I went to use my heal signet while fighting It said I didn't have enough energy to use it. if I ran away I could heal just fine.

Just started this morning.

Not sure if this was it, but I believe there's a skill (nature ritual) that makes signets cost 10 energy to use. That may have been it. It would explain why you were able to use it when you ran away (as you would have been out of range of the ritual.

That would probably explain it then. thank you.