Between Floyd and Manny, PBF is the one that was previously found to be using a banned substance (Xylocaine), yet it was Pacquiao who, most of his detractors, branded as a PED user without any proof.
If Floyd was tested positive during his preparation for the Mosley fight, what would you honestly think of him ?
Below is some of the signs and symptoms of PED use:
Personality change/mood swings
Euphoria/failure to recognize injury
Aggression/hostility/temper/flares
Physical/verbal abuse
Anxiety/tremor/insomnia
Defiance of rules
Depression
Decreased or increased appetite
Reluctance to talk about PEDs
Severe headaches
Menstrual irregularities
Source: American Academy of Orthopaedic Surgeons
http://www.aaos.org/news/aaosnow/oct08/clinical9.asp
I have highlighted in bold those that may have already applicable to Floyd's current state of well-being. The last one, though, I am not so sure. :)