What type of spider bite is this
Unfortunately, there is no positive way to identify the source of the bite just from the symptoms of the bite. Without seeing the culprit biting your arm, it is just a guessing game. My best advice to you at this point is to seek medical attention. The bite looks like it could be infected and you have described other symptoms that could additionally suggest infection. It is in your best interest to have it examined by someone in the medical professions. If you haven't already done so, do go as soon as you can.