I was sick for 8 months also due to Clindamycin. I was treated with vancomycin for 4 months or longer. I tried every probiotic there is. I was given the name of one on this group called florastor and it was a game changer for me. My cdiff got better which may have also have been the vanco for so long but I take it and I (thank God) have been ok. I can’t eat ground meat or corn or any ruffage but it’s ok as long as I never go through that again. I wish you the best❤️Hope this helps.