HTTPS switch and structured data info drop

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hi there , i switched our website over to https on the 12th Feb, i forgot i had to update my webmaster tools so i did that today.

when i was looking through webmaster tools on the structured data info, i noticed on the 19th Feb, a drop from 354 items, down to 172 items i also noticed a drop in traffic to the site around this date aswell, and am still finding this.

is this likely to be because of the switchover ? i have updated webmaster tools now, but can't check structured data for it yet as it takes a while to update.

just a bit concerned , as beginning to wish i hadn't switched now :\

my website is

many thanks for any help :)