Hi my daufgter 33 breastfeeding her 4 mnth baby suffers from tachycardia for last years. She stopped inderal on her pregnancy and until last week she started again. today she felt dizzy nauseas she missed 1am dosis but took 6am , symptoms started at 7am with pulse was 50, her pressure always run low like 100/80 or even 90/70. we took her t E Room after calling healthinsurance hot line saying no need to E Room , since went down to 49 and they monitored her and gave her IV normal and went up to 70 pulse. discharge her,, now she has 60 pulse, any reccomendation? thanks