As per the details u have submitted, u were suffering with HYPERTHYROIDIM . U have the toxic symptoms of thyroid I.e excess thyroid activity. Along with pills you follow these steps
1.have done ur thyroid profile again
2. Done the tests anti TPO antibodies
, other anti body tests
3. Ultrasound thyroid
5.2d echo for ur heart.
After that consult cardiologist
It's better to take propranolol
40 mg once daily to relieve ur tremors and shivering.
Hope this will help u