linda,
i was given clexane injection. dunno what happened also..i was breathless, then they did ECG, was abnormal, my right lung got some fluid or something, say its blood clot, cos i suffer from leg cramps every night since week 15. i also got edema on both my legs. but after that inj, the leg doppler scan, and xray, all was normal, and i was better like 4 hours later. but cos my situation abit complicated, they still treated it as PE, saying the clot could be floating somewhere else.