In the UK B12 is measured in pmol/mL (US is pg/ml). So Blair's 265 pmol/mL is considered within the normal range in the UK (180-1,000pmol/mL). However as in the US the range reference is considered outdated by some physicians.

Here's a link to a UK website which explains it quite well:
http://www.drsharmadiagnostics.com/v...deficiency.htm

Blair it won't hurt to start supplementing with 1000mcg of oral B12 methylcobalamin daily for 3 mths, see if it helps, then reduce to a maintenance dose of 2-3 times weekly. Take it on an empty stomach at least 1 hr before food. Stop taking it for about 1 week if you're having a blood test - it can give a false high reading.
For more info check the B12 sticky: http://neurotalk.psychcentral.com/thread85103.html

Another thing to consider is that both your low iron absorption and B12 could be linked to gastro problems. Are you taking any probiotics to help with the stomach issues? All the best for improvement.

Link to website with conversion chart for those wanting to compare different ranges for tests in different measurements:
http://www.globalrph.com/conv_si.htm