really dont know how to react

[dontwanttobefatandforty]

My 16yr dd has just come in from 6th form telling me her head of yr has suggested she goes the doctor and may need counciling because she is always seems sad, I don't know what to do, I admit last couple months (since she got a bf) she has been different but nothing more I felt than teenage type stuff

Most teens have at least an episode of roller coaster self-esteem, I think you're right, it is pretty self-limiting normally.
I think I would want to know what HoY is seeing that isn't so apparent to you; so I would try hard to get in touch with HoY.

Hoy should be calling me back tomorrow

please see it as a good sign that she has talked to you (albeit via the Head of Year) as its often hard very hard to admit to us mums. check how schoolwork is affected etc via Head of Year, and at this stage, tell her you love her, praise her for telling you, say you know it must be hard, lots of teens have tough times, and you will help her get some support, whatever that entails. . Dont beat yourself up if you have missed something - hopefully school counsellor would be a start but if she is struggling with negative thoughts and wants to seek help, as she has mentioned the GP herself, encourage her to go and chat, and get a professional opinion. Sometimes teens don't know what is making them sad, as its often a combination of events/ways of thinking which therapy can help unravel . good luck to both of you.

Is the bf abusing her in any way?

No I don't think bf is doing anything, her school work in some subjects has dropped but and I have noticed a lack of enthusiasm. I truly thought to myself that she is finally going through the typical teenage angst as she has been a genuinely lovely girl. My reaction when she told me was shock and she thought I was angry but I was stunned and just said how I was confused to all this. Will see what happens with the school