Dandruff

For reference turn 60 in August... I have questions.. My skin and scalp has changed so radically recently... Don't know the cause of it is if it's fungus or rosacea or what it could be... I have mild dandruff which is new as of recently last couple of months... and occasional bump / zit on scalp as well . My face started with mild broken blood vessels just little spots here and there... And some of them are quite some time but like I said recently..Those areas have been flaring up with redness a lot more lately even just touching my face. Also other areas of my skin have completely changed their texture My skin looks weird and sort of like somethings going on under the skin it's red and weird dry looking sort of hard to explain ,and my skin has gotten exceptionally lacks and sagging and wrinkly (jowl area) which I already had problems with poor skin anyways, but now it's beyond within the last couple of months and just basically irritated all the time..and around my nasal folds I feel Tingly and somewhat I guess itchy I don't touch it but it drives me out of my mind sometimes it even tingles inside of my nose . Also noticed recently that I feel like my skin's crawling I kind of itch all over periodically as well. My question is dandruff is more fungal I would assume but it's happening along side of this change on my face so I don't know if this is rosacea or a fungal infection or what any info would be greatly appreciated