I'm waking up at around 4am with raised temperature, stomach acid (issues during the day with this one too), internal shivering, palpitations. I'm on 75mcg levothyroxine (having reduced it from 100mcg), vit C and 1 Nutri Adrenal Extra to see if that would help. Anyone got any ideas on how to resolve this with supplements, food etc. My GP has prescribed beta blockers for a couple of weeks to resolve anxiety issues, although he did say my T4 was high and that may be contributing. Started about 2 months ago. My recent test results are: TSH (0.2-4.5) – 0.36, Free T4 (9-21) – 22.9, Total T3 (0.9-2.4) – 1.4 and Ferritin (15-200) - 54. Bloods to be tested again in 3 weeks to see how I'm doing on 75mcg. Any thoughts?