unusual activity on my adsense account. extremely high CTR

[khurram84]

hello all

i noticed unusual activity on my account from a month , i check my account i have normal position like 3 ctr and 2$ earning.

after some hour i again check and i find that my CTR raise very high about 52 CTR and over 1000 clicks and only 4$.

this happened me 3 or 4 time this month , every time when it happened i remove my ads form site for some days and when i put them back i get this activity again after 1 day and on the same day.

latest this happened me today , i put ad yesterday , in night states were normal , but when i wake up and check in morning i noticed again this problem.

one of my friend has also same problem but he have only two time ,

is there any other who is facing this kind of activity.

any help how to prevent this.

thanks