Kidney stones

So i was in the hospital for 4 days extreme pain to my side out of nowhere! My other half and i sat down for breakfast at a restaurant in the 4th and pain came over me within seconds! Then i started puking and sweating uncontrollably. They had to call an ambulance i honestly thought oh no im losing my baby im 20 weeks pregnant...after hours hours of pain they told me it was kidney stones. Ive never had them and i can honestly say they are worse than labor just because they last much longer. Im home now and im still in so much pain i refused all pain meds and ct scans at hospital for my babys safty they gave me a low dose 5mg muscle relaxer because i keep have muscles smasm especially when i try to sleep. Its just a waiting game they did ultrasound and saw the stones. Logan (my unborn) is doing good though but my blood pressure is staying low My blood pressure wont go over 76/45 its saying in 70s over 40s Normally its 120s over 60s 70s