No. That's prolly an overdose :)
I take 5000iu of D3 per day.
Same here...5000 IU Vitamin d3 daily...no cold, no flu, nothing...been that way for years and years.
I started in March on 20,000iu/day with a loading dose of 50,000iu once a week to prevent cluster headaches (the regimen includes other stuff like fish oil, calcium citrate, magnesium, zinc, and some trace stuff like vitamin K and boron).
After being episodic for 12 years and chronic for 8, I have been pain free since April.
I've also heard that even higher doses can bring significant remission for MS patients.