Hi nedka and welcome to the forum. On the assumption that you are also new to the site, the following FAQ should help you to find your way around.
Welcome to Benefits and Work There is only one ESa50, this needs to be completed with details of any and all conditions that affect your capacity. Our guides come in 2 parts - physical and mental health conditions - in order to make them more manageable for claimants but that does not mean that there are 2 different forms.
ESA claims and appeals In addition, you might find the rest of our ESA FAQs helpful
ESA FAQs Please come back to this topic if you have any further questions, it helps us if we keep everything in one place. You will find it easily in future if you bookmark it, or make it a favourite, on your web browser now