I took the train to metropolis yesterday to Nikon, and he said it was fungus behind the front element and it was a good call i travelled up there.
Just been unlucky as my storage wasn't really all that bad i would have thought, though now im definitely a bit more wiser after listening to him & i can now see what could of helped this stuff to grow.
All of my other lenses are fine, its just the telephoto lens that copped it. Might have picked up some spores doing the wildlife stuff out bush & the parks. It's been wet but not humid so who knows. So my lenses now stay on the kitchen table with there lens caps off facing into the sunlight for the UV rays.
Ps. I better not catch bloody covid or the flu from from being around all those noisy humans & public transport.