Prolomet xl 12. 5 and restyl 0. 25.

I hav hypothyroidism since 8 years.i hav irritable bowel syndrome last 2 years.gastroenterologist prescribed sarotena 10 mg tricyclic antidepressant tablet for 6 months.again continues it 3 months but due to luck down and I hav covid positive before 6 months iam not take any doctor advice I suddenly withdraw  taking this tablet.after one month I hav pain in chest and high heart beat 100-130 per min.heart palpitation also.I consult December 2020 cardiologist I done ecg and echo all r normal sinus trachy cardiac .but still I hav problem while walking . hav chest pain and  breathing problem,again yesterday I consult cardiologist  done ecg and echo sinus tachycardia and except pulse rate all are normal mentioned in report.to do tmt test I hav high heart beat ,bp 122/83 doctor prescribed prolimet xl12.5 for 30 days and restyl0.25 for 5days.after 15 days I go for tmt test.I return home now my heart beat  88p/m.my question is can I take prolomet now my heart rate is low it causes  bp flactuat