I'll try to explain what I saw last week. They would put the needle in and for the first 10 seconds think they had it - then you would see it swell and then flatten and it would bleed. Once it did that they couldn't get anything out of it and they had to start over.

I don't think it's serious or permanent, but you know I honestly don't know that for sure. Hopefully somebody with alot more knowledge than me can answer.