Chrystaltips - I've just asked mumsnet to send you an email with my details on it. But, in the meantime I'll go on to say I'm not a doctor and I don't know how bad your stress is but I would try to stay away from the drugs if you can. I suppose you need to ask yourself the question about how bad is your stress and whether you feel your doctor is doing the right thing for you by prescribing the drugs he/she has. You may need them in the short term but not the long term.
I think your note on mumsnet shows that you are already looking at alternatives to handling stress other than drugs and this is a positive. I'm sure you will get a lot of advice which you will be able to look into and decide on what is appropriate for you.
Unfortunately you are the only person that can reconcile yourself to the fact that you are not failing anyone else, nor yourself by having stress. Others can support you, show they care, and help carry the burden but until you realise you have an illness that YOU need to get better from this won't help. I think it is the hardest part of recovering from stress but once you let go of the feelings of inadequacy, failure and weakness your recovery will commence.
You are not inadequate, you are not a failure and you are not weak.
I know we don't know each other but I am sure you cope exceptionally well with all life throws at you.
Stress is your body's way of showing you that it needs a break otherwise something even more serious/life threatening may occur. Listen to the signs your body is giving you and work with your body to overcome this.