As I'd been having this irritating cough for ages and the Dr prescribed nasal spray, I'd reduced levo a little untill the nasal spray had got chance to work to 50 mg from 75mg alternate days. This worked quite well but not completely, after a while the hypo symptoms would appear (extreme tiredness, no energy, constipation etc).
The ENT specialist was next to useless, as expected, his advice being try not to cough and keep using the nasal spray.
I began to take a multi-vitamin daily and this helped my skin feels and looks better but still tired and yawning all day and going to bed early eveining most days, little energy and constipation and of course the weight issue. I decided to go back to 75mg daily and heyho all these changes have given me more energy, not so tired so I can stay awake a little longer most nights and less constipation.
However, and here comes the step back, the cough is worse. Nasal spray helps but its definately worse with the increase of levo. Oh and I'm finding its not so easy to get up in the morning as I'm feeling the tiredness then - strange as I've not had trouble getting up since I was a teenager (and yes that was a very long time ago). Just can't win.
As you might know the Dr won't have any of it when I suggest that its the levo that is causing it.