Hi,
When one breath deep, there mild strech tto chest, abdomen & attached appendages(legs ,hands) I feel already existing problems n your hand &leg are aggravated due to it.Please don't worry,it is not due to respiration.
many a times such pains are due to-
hand pain-due to bone & muscle weakness-a calcium &vit. D suplimment should healp.
Pain in left leg- From the symptoms,seems to be due to
sciatica - needs painkiller,& vit BI,B6,B12 suppliment in proper doses after an experts advice.
Perticular
yoga exercises are also indicated.
You must take care of your
sinusitis with antiallergics, nasal vapour inhailation ,avoiding exposures to allergens.
Hope the information serves your purpose.
Thank you.