My left hand forefinger is shivering and it feels like it has no strength. Also in recent months I am feeling like 'something going through my blood vessels', like feeling some blood rush in legs and something passing though and not getting through. I am worried that I am developing any serious problem like fits or paralysis. I am worried because I suffer from breathlessness due to blocked left nostril and this problem has been there for long time, which was not cured properly. Please help diagnosis before I run into problems. Thanks Balu