Hi Keith,
I have always had rather sensitive gums and have always used the softest bristles available.:-P
I too have had bleeding gums a few times in the past two years or so… but I don't recall if I was on treatment at the time… probably rather than possibly. An extra flurry of mouthwash regimes has cured it every time so I didn't report it as an ongoing problem.:-)
You should consider ringing in and reporting it as a problem… ask about the platelet transfusion, telling them that it is bothering you and causing you concern… so on Monday you could look forward to positive action rather than just raising the problem then… because leaving it with them on Monday could easily stretch it for another week or so.:-S
Your call… but I would make it if I was in your shoes. 😎
Dai.