SOYA Products Detrimental to Health?

Can anyone clarify the subject question above?
There seems to be a lack of investigation regarding SOYA.
I have heard that the consumption of SOYA products and particularly SOYA milk has been linked to acne, increased oestrogen levels, and problems with the Thyroid gland.

2)Having recently scrapped dairy products from my diet, (particularly for skin reasons) I have begun using SOYA milk and related products which only seems to have aggravated the problem. I tend not to eat anything that creates surges in my blood sugar levels (sweets etc), and I eat very few greasy foods. Could the outbreaks be down to SOYA milk?