A visit to your GP doesn't necessarily = medication. But it is the best place to start to secure some counselling. Maybe relate?
I totally understand how finances can make you feel so low - im sure its the underlying factor behind my lack of labido. When you have all those worries, even when you aren't thinking about them they are there - its insidious.
So, what have you done to try and sort the finances? Are you just trying to battle on? I would strongly suggest you have a look at the national debtline website, and phone them - please phone them, they are helping us and quite frankly, without their help im not sure what would have happened. There are so many routes, mostly long termish, that you can take to sort your finances out - some mortgage companies will accept interest only payments for a short time. Things like getting credit card interest frozen. There are template letters on the website and a budget planner to help you assign money each month - you send this to any creditors, they like it or lump it, mostly they agree - we are paying some of our debts off at £3 a month atm. Having it all under control will give you back the power. When i sorted our stuff out, it made me feel good - ok i wasn't earning anything and contributing in that way, but it took the stress from DP.
I am a bit dubious about meds for you though, most SSRIs, which is most likely what you would be prescribed can decrease labido - however, if they make you feel better then chances are you would feel more sexy? You don't have a marena coil do you, the day i had mine fitted, my labido packed its bags!
We are like you, with sex comes intimacy so when we dont have sex that goes out the window to, and that can make me feel like im living with a flat mate - thats not good.
Do go to your GP - talk to someone, get some help wiht the money stuff, thats the first step. The sex will follow