I've been posting recently about my sister who has low ferritin and low T3 levels ,we have just discoveredthis from a private blood test , though TSH is 0.87 . Would this cause excessive yawning / gaping and a feeling that you can't breath deeply especially after walking .. Hoping to see Dr next week and try to get a trial of T3 , if T3 levels are raised would this also enable ferritin levels to go up as it seems one hinders the other the is that correct .. ? Very concerned about these symptoms is there any other cause ??? She had irregular heart beats a few weeks ago and went to Dr for trace told all ok ,normally her heart rate is very low around 60 Bpm .Thanks once again for your help.Val
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