Bests & Worsts Reviews from Amazon

I have been taking this brand since July 2016. It has been an absolute miracle for me. I have cervical disc degeneration as well as osteoarthritis in several joints. I'm only 43. Three weeks after I started taking this product my pain was almost completely gone. BUT- This last bottle I received, my pain was coming back after 8 days. When I mentioned this to my mother she said she had also been in more pain than usual and maybe it was just the weather or something. When I asked her to look at the lot number on her bottle (she has been taking it also) we found out both of our bottles were the same lot number. Ordered a few days apart from Amazon. I ordered us both new bottles from another source and have been taking these for just over two weeks now and I'm already feeling better. I hate to leave this review because I love this product but if I can't depend on every bottle to work. . ... we're also out almost $60 for the two bottles since by the time we realized what was happening, ordered new bottles, waited for shipping from the other source, and confirmed the new ones were good, the return period for Amazon was over. Anyway, the lot ends in 1064. I'm curious if others had a similar issue.