I have just started thyroxin and have just started to feel better. I notice I feel better in the morning, more normal less tired, etc. However around lunchtime I just seem to crash and feel absolutely awful. I feel dizzy, exhausted, awful brain fog, cold then hot.
If I do nothing and I mean nothing I start to feel a bit better in a couple of hours. However not enough to actually do anything.
I am on 50mg of thyroxin.