Can i be suffering from depression if i'm not sad? just lacking energy, struggling with managing household, and little interest in leaving my house.

Yes: yes you could be suffering from mild depression or from a physical illness. you can do some symptom report scales to double check. google for "PHQ-9" and "Zung Self Report Anxiety Scale." fill them out and take results to your physician. other considerations: family history of depression; recent losses or stressors; ruling out physical causes of your symptoms (see pcp). make sure you stay active.