This fall might not be of Halving it looks like it is majorly due to the corona effect. I am holding and will also buy more when market is still low. If you check out previous halving history this was not expected this time.

Below are few predictions given by top market predictors. They did not predict this fall as they had not future site about corona being introduced:
Here you can read the prediction: https://coinswitch.co/news/bitcoin-price-prediction-2020-2025-latest-btc-price-prediction-bitcoin-news-update

Also, the halving is yet to come in May 2020. Let us all hope for the best. I do not think it is panic situation for holders.