Talk to Endocrinologist on Hypothyroid

Aoa..I am extremely depressed about my condition thats y I turned to this forum..I have been diagnosed Hypothyroid in may 2019 and taking thyroxin 50mg daily every morning before breakfast and Alhamdulillah my thyroid levels r under control but despite of that I always feel lethargic,sleepy and out of energy..im taking iron and vit D supplements too..my stomach is troubling me alot i usually have constipation some times its loose, nausea,fullness in stomach i dont feel hunger..I dont know whts happening with me..I face fast heart rate too sometimes my bp gets high like 130/90..my gp has done all the tests including ecg..everything is clear Alhamdulillah..i need doctor's advice what to do further..i'll be really grearful