If you have never engaged in unprotected penetrative sex you have nothing to worry about. Condoms are effective barrier to HIV transmission. Also, oral sex is not a risk.
The symptoms that you mention are not relevant to HIV symptoms. Your wife is okay, she doesn't have any HIV symptoms, red dots / bumps are common rashes, they can occur due to a lot of reason - brushing against the collar of the cloth she wears, mosquito bite, allergy etc. You are going through paranoia - watery stool, psychological pain etc are all classic anxiety symptoms.
You seem to be going through a lot of anxiety due to some underlying emotion, I suggest you seek help of a counselor, HIV is not the problem here.