I used to be a regular donor. Got to a decent total of 67 donations. Went between Christmas and New Year 1999, and my blood pressure (fine for the donation earlier that year) was sky high . Refused to take the donation, sent me in a hurry to the Doc ( who jocularly commented " with that reading I'm surprised it's not squirting out of your ears. ") on a cocktail of meds now, so no more donating for me ( and I'm too old now anyway)