Have we over recent months had a head and shoulders pattern, followed by a reverse head and shoulders, or am I trying to find a pattern that isn't there ? What do you reckon ?

Such patterns are a reliable reversal indicator. (But note the time frame of the chart in which it occurs.) The pattern is usually a strong signal and can give rapid profits if identified early. Notice also the swing around the mid point of 3165 high and 2848 low.