Insulin pooling under my skin and some spikes

Shimmmer said:

I have been very careful about varying my sites and making sure the areas don't become bumpy, my skin (sites) is smooth but I can feel little blobs of hardness under my skin as well swelling of skin in the area. There is no redness or irritation at the sites so there are no infections but my QA insulin has decided its had enough and puts its self in lockdown.

How very dare it!:***:

Think my pen needles are too small and hope to inject with longer needles ( 10 - 12mm) because my good bg control is taking a hammering.

Has anyone else had any issues with 4mm needles?

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