Weight gain

At the beginning of the year, within about 6 weeks I put on 2 stone. My body shape didnt really change and all my clothes still fitted. Slowly over the next 4 months, despite my weight remaining the same, my body shape has expanded and nothing fits. Ive gone from size 10 jeans to size 16 floats dresses being skin tight. 

The only difference in my diet is that i discovered in December i could eat dairy and soya again. I did thoroughly enjoy Christmas food wise and then spend over a month mainly in bed post weight gain due to depression. 

Is this normal? Why hasnt the weight just dropped back off when i have ate less?

Ive not tried giving it up again as i was the same size and weight before i became intollerant as i was before i piled on the pounds this year. 

No anti depressants Teclis 

Maybe if i find someone fun Bernstein 

The only part of this that doesn't make sense is that you say your size 10 clothes still fitted despite gaining 2 stone, and then afterwards stopped fitting despite staying the same weight.  That's impossible. 

If you were in bed due to depression after the weight gain you probably were wearing loose tees and sweat pants a lot and yes you could probably still get into those. When you got up and about again you found real clothes didn't fit. That's all.