It is quite common to experience fluctuations during the initial recovery stage of your epiLASIK surgery. During this period, we will advise you to trust in the healing process. It is important for you to apply eye drops which have been prescribed and to stay away from strong sunlight.
Your eye powers will take some time to settle down, but since it's been 10 days since your surgery, it's definitely still in the early days of recovery.
Wishing you a speedy recovery!