Okay, adding my two cents--when folks said KLOW was painful, I was imagining it was DURING injection. I was thrilled when I pinned it in my tummy, like my tirz, and felt almost nothing. Just a tiny maybe-discomfort? Went on with my day. Woke up and the spot was sore, then later, a little itch under the skin. Pinned the second one on the other side, deeper, and a little pain there. No itch yet, but it took a day for the itch to show up. No lump.
Went for a fast walk cause I haven't worked out and it turned into a long walk, and holy cow I feel good. Both the pain and the itch went away as I was walking. The first site has a red mark and some slight discomfort, but no itch or pain. I thought a workout would get my blood flowing and help, and it DOES feel better. I also felt really strong, like I could keep going. Placebo, sure, but I'll take it.
Also, I swear I feel SOMETHING under the skin of my face. My face and lips both feel tingly. Hoping that's something good happening or placebo, cause if it's an allergic reaction, the joke's on me.