My wife is 13 wks pregnant in ivf,she is taking susten 200 bid vaginal,susten 100 im od,inj.lomoh sc od,tab.progynova 2mg bid.and was on t.omnacortil 10 till last week, she had her OST yesterday under iv sedation.she was complaining shortness of breath,palpitation occasionally.now she s having sinus tachycardia (ecg)since the OST.i want to know whether the tachy(palpitation)is due to steroid abrupt withdrawl or susten overdose or due to progynova?.is echo needed..kindly clarify the whole thing. Thank u