Hi, i am a 22 year old female and for the past few weeks I've had very dizzy spells, blurred and darkened vision with black spots, tingling and numbness in both arms, my face and my tongue as well as slight loss of feeling in my hands when sitting, standing and lying down. I've also had clammy skin and shortness of breath when this happens. If anyone has some advise on what this may be caused by any advise will be welcome.