Is it my imagination ?

On Monday I weighed myself and I was 76.3 kilos. Since then I have completed 4 sessions of Cardio - I have Completed I sesssion of 40 mintes running and 1`5 minutes walking,

1 session of 40 minutes running and 30 minutes walking
1 hour walk

1 hour bike.

I have drank a few alcoholic drinks each day just about however that would consist of average maybe 4 drinks per day.
My diet has been ok but not great - I have not overindulged and ate to the point whre I cannot fit another thing in and the food quality was ok but not brilliant at times there has been 1 or two bad meals.

Now today I stepped on the scales and noticed I am weighing 80 kilos a mere few days after the previous weigh.

Is it possible there is something wrong with my body as I believe it is extremely diffiocult to put on 3.5 kils in 5 days.

I know teher has been some alcohol inviolved however there also has been some decent cardio sessions.

Any response would be appreciated.  

My guess is that it's just some water fluctations going on. It doesn't sound like you went too out of control here, so for it to be 100% fat gain would be rare. I'd wait a few more days and re-weigh. Hopefully it'll be closer to where you were again.  

Your right - I weighed myself today and it appears to be back to where I started - i find my weight fluctuates alot quicker than most - goes up very quick and then goes down.

Strange.

I'm going to try and keep it going down - goig for a hour bike ride tonight.

Thank you for your response.