i certainly remember the confusion & disorientation -- i wasn't able to concentrate on reading anything for several months after my mom passed from this world. when i did, the first book i read was "we don't die" about the medium george anderson. after that, i read as many books on the afterlife as i could find. it was a tremendous comfort.
my mom was & has been around quite a bit. i've gotten countless "signs" from her, sometimes even within hours of asking for one; i still smell her mixture of powder & perfume on occasion, one of the lights in the house began working again after over 10 years of not working--it would flash on and off sometimes, sometimes it would just turn on and a couple hours later turn off--that went on for several months after her passing. there have been lots of things like that.
i don't doubt your mom is still near you.
i just want to let you know there is a bereavement group on du--it was my go-to place for several years here. hopefully you can find some comfort there as well.
http://www.democraticunderground.com/?com=forum&id=1234
"Your Mother is always with you. She’s the whisper of the leaves as you walk down the street, she’s the smell of certain foods you remember, flowers you pick, the fragrance of life itself. She’s the cool hand on your brow when you’re not feeling well, she’s your breath in the air on a cold winter’s day. She is the sound of rain that lulls you to sleep, the colors of a rainbow, she is Christmas morning.
"Your Mother lives inside your laughter, and she’s crystallized in every tear drop. She’s the place you came from, your first home, and she’s the map you follow with every step you take. She’s your first love, your first friend, even your first enemy, but nothing on earth can separate you. Not time, not space….not even death."
-----Author unknown
take care. 
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