As you know on Friday I cut my finger. Went to the hospital and they gave me stitches + 500mg Flucloxacillin. Today while at work I became very aware of having very little energy and decided to go home and go to bed. I have been in bed most of the day, with virtually no energy. Hot and cold flushes also, and my blood pressure was ok 144/88 but resting pulse is 120 bpm. I feel like I have got a very bad dose of the flu, and am very restless about it. It really has took me off my feet in a surprisingly swift fashion, and even typing this is an effort. I feel slightly sick and have indigestion. My appetite is currently very poor - although I feel hungry, I'd struggle to eat. Do you think its just a reaction to the tablets?