Wet, Itchy Bottom with foul odor. Please Help.

I honestly thought I was the only one going through this. I am a young female. I don't believe I have hemrroides or IBS although I am not regular with bowel movements. Normally constipated but when I do go it's normal, not diarrhea. I'm not the healthiest person around but I don't eat out for the most part especially fast food and I try to keep caffeine to a minimal . I've had this problem for a couple of years and I don't know what to do about it. It is really embarrassing. I work as a CNA and I am very active at my job and that is normally where I experience my issues. Once I use the restroom I always make sure I wipe thoroughly and properly. I mean my bottom is normal red and raw with me trying to keep from the discharge. It could be 30 min later or hours later I'll start feeling like my bottom is wet like it's been sweating, and it's terribly itchy with a horrible "nasty ass" odor. I'll go to the rest room and re wipe and even use soap and water to clean it better once I'm dry I'll go back to work or whatever and it still comes back. It's always worse on the days I've had bowel movements but it happens when I don't also. I've tried the wet wipes but I havnt tried any cream. I just want to know if there is any hope and if I eventually find the nerve to go to a doctor can I be treated? Is there really a medical reason? Or are they going to look at me like I'm dumb then send me away. I mean the problem is embarrassing enough without a doctor sending you away making you feel dumb for wanting answers.
Im not an unclean person I shower daily I mean I just don't understand it. Please help. It happens at home too, not just at work but I feel like I experience it more at work bc I am more active at work?

I just don't see how I can be incontinent, I mean I think of that as not being able to controle any movements you have. I mean I am fully aware when I need to use the restroom what would cause it? But yes I do a lot of lifting at my job. And it is embarrassing to me bc I've always been extremely private and reserved when it comes to my issues.