Fungal Nail Infection On My Toenails

In my teens I had a dreadful fungal nail infection on my toenails - for example the nail on my right sided big toe was completely yellow and crusting away, and all the nails were effected, but the doctor wouldn't prescribe the tablets I needed to clear it up as he said I was not old enough and that they can cause other problems anyway. So he always gave me anti fungal cream that I had to apply twice a day, but it never ever did a thing!

When I got a bit older (around 22, 6 years ago) I decided to give the tablets a go because I was so disgusted with my toenails and it was really effecting my self-confidence. To my amazement the infection started to clear up on most of my nails and things were looking positive. However I started to feel really ill, and thinking it was the tablets, I stopped taking them. My nails still for the most part looked good though.

But now my fungal infection is back again, and whilst my big toenails look almost normal and fine, the other toes, especially on my left foot, are a bit manky, some are even yellow. I don't know what to do about this really and was hoping someone could advise me. I would usually go to the doctors, but I am currently signed off work with what they say is anxiety/depression and extreme fatigue, and I have to go to the doctors enough as it is, and am also taking medication for the depression and also an underactive thyroid, so I don't really want to be taking more tablets - also I am starting to get really self-conscious about going to the doctors, almost feeling like they must be fed up to the back teeth with me, so I am nervous about going back with yet another problem

I know that back in the day (my teens) when I first had the problem, there was really only the anti-fungal cream, which as I said before, seemed to do nothing whatsoever, but now I always see adverts on TV with products that can be bought over the counter and say they clear up the infection completely. What I want to know is which product would you recommend, or would you say it is best to have a doctors appointment?

Also, does having the infection on my toes cause problems for other parts of the body? I am starting to wonder if there is a link with me having the fungal infection on my toes and my tiredness, as I read that yeast infections can cause fatigue.