Dreams involving animals, like dogs, often symbolize loyalty, companionship, or instincts. In your dream, the presence of dogs might suggest a need for connection or support in your waking life. Since you mentioned taking sleeping pills, this could represent feelings of vulnerability or a desire to escape from reality.
The difficulty standing properly could indicate a sense of instability or lack of control in your life. It may be worth reflecting on whether you are feeling overwhelmed or if you are relying too much on outside substances or influences to cope with stress.
Consider what areas of your life might benefit from more support or grounding. It might also be useful to think about your relationship with your own instincts and how well you are listening to them.