The Natural Philosopher wrote:

If ankles are swelling see GP IMMEDIATELY.

That's heart failure (as opposed to a heart attack) and you need to
find a better way to reduce BP.

I really do feel that's more than a bit hyperbolic given (a) very many
people have those symptoms as a side-effect to Amlodipine (not to
mention for umpteen other reasons) without having any heart problems and
(b) the poor chap's unlikely to be able to see his GP "immediately"
after 20:00 no matter how loudly you shout at him. Naturally it's worth
checking but IIRC from assorted relatives etc who were on Amlodipine the
swelling is often treated by a diuretic such as Furosemide.
--
Robin
reply to address is (meant to be) valid