(photo from WireImage)
announced earlier today on his site that he was cancelling 4 dates because "he was experiencing shortness of breath and is currently being evaluated by doctors who are recommending a week of rest." Then the Miami Herald
reported that "Sources say he's currently at a Miami hospital with heart issues and could be laid up for a while." But ETonline
is reporting that he is not intensive care and will be out of the hospital.
Either way I hope he is better soon.
UPDATE: Robin Williams' site just updated with this information:
My prayers are with him for a speedy recovery!