You know, I'm really impressed that you haven't gained all the weight back up to 194 again. That, to me, is to be commended. I've never been able to do that...yet.
I have a PT now through LA Fitness. I only recently started but I love him. He'd probably give me diet advice if I asked, but I'm pretty happy with what I'm doing. He's knowledgeable about my needs though, for instance, my bad shoulder. He's helping find things that strengthen it without injuring it. He's great at showing me how to use free weights with correct form. Form is crucial. He pushes me but I am rarely sore beyond being able to move the next day and that's a good thing!
I have no experience with a nutritionist, but I've done a lot of research on my own. I have learned a lot from the South Beach diet book (even if you don't want to be on the plan) and...LOL...I'm embarrassed to say...from The Dr. Oz Show! LOL!