((((((( HUGS ))))))) - I am very sorry that you are suffering so much today, heart ache is the worse feeling of all to have to deal with.... IMO.
Hand in there and YES by all means call your sister if she can truly help you right now without further distress. You can always PM me if you need to talk it thru..... no judgement or harshness - I Promise!!
LoVe,
Rhapsody -