Custom lasik -7 correction. But still my eyes sometimes degrees, varying from day to day. It has now been 3 weeks. Suggestion?

Hi doctor, I had weak eyes -7 and underwent custom lasik. Now it has been 3 weeks and till my vision isn't perfect. It changes regularly. Now my left eye was even seeing double. It feels like a pebble is in my left eye but i can't find anything? Does this sound like a flap malfunction? I am in Egypt where it is warm and dry. Thx a lot.

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