Unfortunately if you are working from home, you might be building mountains. But no one is seeing you do it, what that generally means is unless you announce explicitly what you are doing people think you are doing nothing.
Contrary to whatever one thinks and the truth is. Perceptions matter a lot more than the reality.
I don't announce anything unless you count commits and issue tracker updates. I am being paid for my work. Those who pay me give me the requirements and know it very well what is being done. Well, since they are paying for it and want it done, how can they not know what is being done?
If only the world worked on facts, and not perceptions...
I posit that "this" is one of those annoying problems of working. If you don't make sure you communicate your success, you won't be successful. People who don't celebrate, share and broadcast their success usually aren't successful. Even when they are in the office 100% of the time.