Gematrias

Many people mock gematrias and I definitely agree that sometimes they get stretched a bit. Once you start adding or removing letters, it definitely loses some of its potency. However, Hebrew is not just another language, it's lashon hakodesh. There is a reason and not only an explanation, but a deeper explanation to most words we come across. Maybe another time I'll get deeper into that. For today, I just wanted to throw out there a few interesting gematrias that pertain to this time period (I hope Reb Shimon Bar Yochai and the Ramah whose yahrtzeits were today will be proud).

We know that sefira is 49 days and is split into the days of mourning prior to Lag Baomer, and the days after, as we approach the holy Yom Tov of Shavuous.
The word "midda" has a gematria of 49. This can be understood both relating to us improving on ourselves and our midos as we approach Shavuous or us raising ourselves level by level (midda) until we reach Shavuous.
the words "lev tov" also have a gematria of 49. In fact, as I said above, sefira is split in two. "lev" refers to the first 32 days. The "heartfelt" days of mourning. "tov" refers to the last 17 days. The "good" days leading up to Shavuous and matan torah.
Lastly, what is the origin of the expression "oy vey"? I recently heard that it comes from the expression that's brought down in the gemara, "vay" (spelled vuv, yud) which is a cry.
As stated above, the gematria of lev/heart is 32. When a heart is sad and broken, it's split in half. "vay", the cry of the heart, has a gematria of 16, half of "lev".