Did Liposuction Screw Up my Metabolism?

It is highly unlikely that liposuction interfered with your metabolism.
However, there are several possibilities that could explain your condition:

Look at other medications such as Birth Control Pills
Alteration in GI Flora with fecal retention - probiotics may help
New onset thyroid condition

Liposuction does not cause weight gain. You need to see your primary doctor and have a complete history, physical and testing to determine why you are having these issues. Good luck.

I am not aware of any studies suggesting that liposuction would cause weight gain or change metabolism in a detrimental way, nor can I think of any reason why that would be the case. You should check with your primary care physician to see if you do have any metabolic problems though.

Masha,
Something is screwing up your metabolism, but it is not liposuction.  I suggest a consultation with a nutritionist to confirm whether your "diet" is really a diet and a healthy one at that.  Good luck!

Hi Masha:
You should not have to starve yourself or work out constantly to lose weight. I really want you to see your primary care doctor to see why you are gaining weight. Based on the history you gave, this weight gain is not likely related to the liposuction. Most often, this type of weight gain is hormonal and can be related to Birth Control, changes in Thyroid levels, or other hormonal changes that can be treated by a doctor. There is help out there but you need to take action to find out what needs to be done.

Hi!  It really sounds like something is going wrong for you, but it is unrelated to your liposuction. The timing is just a coincidence.
The most obvious possibility is an underactive thyroid gland. That will cause abnormal weight gain.  But in any case, you need a thorough medical work-up.