Out of the hospital but feeling crappy😣

i posted the other day about having been admitted to labor and delivery for possible preeclampsia. they treated me with blood pressure med and magnesium iv. they said the magnesium would make me feel "off" almost like a hangover. but they removed the iv for it over 24 hours ago and kept me for observation the next day. i was discharged today and I'm home now but i am feeling like total crap still. I feel like im not taking full breathes, i feel sluggish and off, like my mind is foggy. they didn't seem worried when i left the hospital. i am wondering if anyone has been on magnesium iv and felt this way afterwards and how long it lasted? could this be side effects of the new blood pressure med? or is my body just still recovering from laying in a hospital bed for days straight?

*update*- i didn't sleep at all last night.😞 still feeling off and my pulse is sitting around 40 constantly, normally outside of pregnancy i have tachycardia and my pulse it's around 90s..not sure if this is causing the issues but they got me scheduled to see the doctor later today thank goodness.