Is this grammatically correct? What does it mean? Any possible rephrasing? I miss when I had money

Yes, the sentence "I miss when I had money" is grammatically correct. It expresses a feeling of nostalgia or longing for a past time when the speaker was financially stable or had more money than they currently do. Here are a few possible rephrasings: 1. "I long for the days when I had money." 2. "I miss the time when I was financially secure." 3. "I wish I could go back to the time when I had money." 4. "I yearn for the period when I had money." Each of these retains the same general meaning while varying the phrasing.