Sorry, but the symptoms you mentioned are not definitive enough, so before commenting further, please review the following lists of typical symptoms and tell us which, if any you have.
hyper
Unintentional weight loss, even when your appetite and food intake stay the same or increase
Rapid heartbeat (tachycardia) — commonly more than 100 beats a minute
Irregular heartbeat (arrhythmia)
Pounding of your heart (palpitations)
Increased appetite
Nervousness, anxiety and irritability
Tremor — usually a fine trembling in your hands and fingers
Sweating
Changes in menstrual patterns
Increased sensitivity to heat
Changes in bowel patterns, especially more frequent bowel movements
An enlarged thyroid gland (goiter), which may appear as a swelling at the base of your neck
Fatigue, muscle weakness
Difficulty sleeping
Skin thinning
Fine, brittle hair
hypo
Fatigue
Increased sensitivity to cold
Constipation (need laxative or fiber)
Dry skin Need to use skin creme)
Weight gain
Puffy face
Hoarseness
Muscle weakness
Elevated blood cholesterol level
Muscle aches, tenderness and stiffness
Pain, stiffness or swelling in your joints
Heavier than normal or irregular menstrual periods
Thinning hair
Slowed heart rate
Depression
Impaired memory
Enlarged thyroid gland (goiter)
Also, please post your actual FT4 result and range. What is TSA?
Please add this new info to your prior thread, so that we can see everything in one place and answer your questions easier.
Those test results don't scream hyper, but your symptoms still do. So you either have to give it a bit more time to see if you have the full effect of the 15 mg or assume that you may need a slight increase in your Methimazole. What does the doctor say?