No worries on the sounding offended...you just sounded frustrated, which is completely understandable. Many people will read posts but if they don't have the answers, they move on to the next post.
Good multivitamin powders are Repashy and Herptivite. I use herptivite, though Repashy is considered the best by most amphibian and reptile keepers. If you can not find them locally, joshsfrogs.com has them.
Repashy, I believe, is used daily. Check the bottle to be sure. Herptivite is used once a week, but not in the same day as the calcium/D3. Calcium/D3 should be used every other day if feeding daily or 2 to 3 times per week. Liquid calcium can be used, but ingestion of calcium through the GI tract is best. Vitamin D3 is required to properly absorb the calcium into the bone. Otherwise, it passes through with minimal absorption.
Frogs very rarely get calcium or vita D toxicity, even when using UVB lighting and supplements. Deficiency is the most common problem. Signs of tetany (caused by low blood calcium levels) are numbness, tingling, twitching, tremors, lack of motor control mostly seen in their limbs when trying to walk, hop, or climb, progressing to seizures and death. Metabolic bone disease will occur at the more serious levels of deficiency or over a persistent period of time. Signs of high vitamin D3 and calcium are lethargy, decreased appetite and abdominal cramps, and muscular over-contractility.
I apologize it took so long for me to find your post. I am glad another member posted because it bumped your post back to the top of the recent posts. If ever you can't get a response, just add a "bump" or "help" post and we will see it sooner
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Do you have any photos?