Sharlene, belated hugs.
I just read of your loss of Molly and am so sorry for all you're going through. I still remember the ache of the quiet house after losing my guinea pigs. And I still know how much I cried after losing Lucy, who was my heart cat. Our Gizmo came to us at ten, but his zest for life was sorely missed after he died. Yes, grief is a roller coaster. And even when the roller coaster finally stops, life will be different. How can it be otherwise when one's heart is broken from losing a best friend?