Maybe not your cup of tea, but you could always consider Adult Psych. Adult Psych often has more medically complex patients (depending on what your unit accepts) and there's of course the obvious co-morbidities, like asthma, COPD, HTN and obesity. I just left an Adult Psych unit that did IV fluids, PICCs, TPN, wound care and handled a patient with a trach. You can still use your psych skills but it's a little more challenging.
I left Pedi Psych to go back to Adult Psych. I was on nights. I like kids and nights but it got boring because kids mostly sleep through the night and if they're up, it's a PITA.