The following commentary comes from an independent investor or market observer as part of TheStreet's guest contributor program, which is separate from the company's news coverage.NEW YORK ( TheStreet) -- In April, the markets seem to be suffering from a case of spring allergies. One day they are feeling better and climbing higher, the next they weaken and drop. Like pollen-induced sneezes, the almost involuntary market spasms at each of the data points have resulted in a noticeable uptick in volatility after a very quiet first quarter. In fact, so far during April nearly half of the trading days, six out of 14, have seen more than a 1% swing in the S&P 500. This is just one day less than the seven 1% swing days in the stock market during the entire first quarter.