"Have I been gaining weight because I'm depressed, or have I been depressed because I'm gaining weight?"

If you are on anti-depressants it is possible that it is a side effect of the medication. If you are depressed you generally don't feel like being active which can lead to weight gain due to lack of activity. Depression can also lead to you stress eating or just plain eating out of boredom. Eating more than you burn in calories can lead to weight gain. There are a variety of reasons the only way to truly know is consulting an expert in the area you feel is causing the weight gain.

This could go either way, and tends to go in a cycle. A person may overeat for multiple reasons, depression included, which makes a person overweight. A result of this can be progressive depression, which can result in additional overeating, only contributing to the problem at hand. The key is to try to get a handle on both at the same time. You must realize that, if you don't stop eating, the cycle will continue and you will never grab hold of your life again. These problems are mutually excluding, meaning that fixing one (overeating associated with depression) will largely help the other (being depressed based on extra weight gained from overeating).

This question is just like which came first, Hen or Egg. But both do follow a close cycle. If you are depressed, you will stop your social and out-field activities leading to increase in weight supported by bad eating habits. Similarly, if you are gaining weight and its being pointed out to you for quite some times, then you might feel depression which will add up to your previous mental status.

Which came first? Often it is hard to self-diagnose when we are suffering from depression because of its effects on our perspective. Depression will look for any reason to validate itself and make you feel worse about yoruself. Regardless of your weight, and regardless of your depression, you deserve to be a healthy person who feels good. You don't necessarily need the answer in order to start a path of recovery from one of these concerns, perhaps the answer will become clearer to you along the way. Good luck!

Most likely you began to gain weight because of your depression then the realization of your weight gain upset you more

Depression can cause increase in appetite and weight, which can lead to worsened self-esteem, and perhaps make your depression worse. However, depression is usually caused by a mixture of different things, or seemingly for no reason at all. Gaining weight is unlikely to cause depression all by itself, although it could make it worse.

i do not know your situation. But it is a side effect of depression, that you eat to numb the pain.

The two can have a large affect on each other. Sometimes, when someone is depressed, they may eat more than normal. This causes them to gain weight. Or it could be that you gained weight for some un-related reason, and became depressed because you can't accept yourself.

Honestly, it can be both. You can be depressed and gain a pound or two, then gain more weight because you're depressed that you were depressed and gained weight. It's a bad cycle and it doesn't actually matter too much. Just focus on losing weight healthily and staying healthy so you don't need to worry about the answer to this question at all.

Depends on the situation. If you're depressed because you are gaining weight, then change that mindset immediately.