I can see that you're uneasy with the psychiatry route because it would be a repeat of what you've been through with your Mother in the past; getting 'labelled with a mental disorder', as you put it.

The only thing I can think of is to ask the counsellor/social worker again directly why they thought recommending a psychiatrist would be the most effective action for you. Mention that you're still confused about that suggestion, hopefully it'll be clarified for you. At the end of the day, it's your treatment, you should have it explained to you fully before you undertake it, if that's what happens.

Personally, I wouldn't be able to give you an answer from what you've written, nor can I think of a logical answer. I hope you get the answers you need.