It's just how some of us are Miss_Me. I have the same problem leading up to my period, but I have no infections and never have. I also shower or bathe twice a day. It's very normal for women to have discharges, as it keeps the internal area healthy. Hormonal changes can alter secretions and odours.
Everyone is different. I think using feminine wash products can cause more harm than good and can lead to Thrush. It probably isn't as bad as you think, but because you are conscious of it, it seems worse.
You should use panty liners, (I like Carefree Perfect Fit) then you can change them throughout the day. They now make very thin ones, which are just like a gusset lining.