Desperatedee - I assume you have made appropriate changes to your lifestyle? e.g. diet, exercise, relaxation techniques etc.??
From what you are telling us - my instincts say that you should try being without any medication or hormones for a while. Set yourself a good daily routine of small regular meals that are highly nutritious, low in fat and low in sugar and drink plenty of water. No alcohol, caffeine, chocolate or any stimulants and definitely no smoking. Make yourself learn some Mindful Meditation and practise it properly for 3-4 weeks to build it into your daily routine. Get some exercise - even a brisk walk (and I mean brisk , not an amble) for 15 minutes every day is a good start. In other words, give your body a holiday from all the negative stuff. This is not easy, as it takes lots of discipline but, I can tell you, it feels really good to have some positive routine in your life. The sense of achievement you can get from taking control of your life can be so great.
Read funny or uplifting books, watch funny and/or uplifting films. Plan fun activities you can do with your daughter. Do anything that stops you focusing on you health - meet with friends, try a dance class etc.
SLEEP is so, so important - wind down properly with no technology for at least one hour before bed. Lovely warm bath or shower before bed and a cool temperature in the bedroom. Get up at the same time each morning.
If your low mood is continuous and you feel you are not functioning on a day to day basis, then you are suffering with depression that would benefit from ADs/SSRIs. If your low moods are just certain times of the month, occasional or simply fluctuating, then the strategies I am suggesting will help.
I do know how you are feeling - I've been there myself. I'm afraid it's about taking back control of your health and wellbeing and not expecting doctors or any medication to sort it for you. Once you have done everything you possibly can to improve your health yourself, write down all these positive things you have been doing for, at least, 3-6 months, then list all the symptoms you want to improve and talk to the GP about how they can help you. You will find that doctors will be better able to help if you are clear about what exactly you want to achieve. It's no good saying you want 'your old self back'. Life changes and how we feel changes all the time, we can't go back, we must go forward and learn to adjust and cope with those ‘down days'. DG x