Once again many thanks all of you and Rebecca for such a detailed account.
Now that my husband is safely home and feeling much better the dust has settled and we have had a chance to consider the events of the past few days.
Upon reflection it would appear that the culprit was the aspirin which he has now stopped. Prior to that he was beginning to tolerate the Metformin well, so hopefully everything will settle down and he will continue to take it and monitor his situation.
We have learned from this forum about the Diastix only recording a reading of 10 or over and also other useful information.
Thanks again,
Panda.
